Seven data points are graphed on the scatterplot. Which statement identifies the correlation coefficient between the two variables and the correct interpretation of the correlation coefficient measure of the strength of the linear association?

r = -0.9886; The correlation coefficient indicates a strong, negative, linear correlation.

r = -0.9886; The correlation coefficient indicates a weak, negative, linear correlation.

r = 0.9773; The correlation coefficient indicates a strong, positive, linear correlation.

r = 0.9773; The correlation coefficient indicates a weak, positive, linear correlation.

A new spiral notebook contains 30 more sheets of paper than a new memo book. The total number of sheets of paper in 3 new spiral notebooks and 5 new memo books is 810. Which system of equations can be used to find s, the number of sheets of paper in one new spiral notebook, and m, the number of sheets of paper in one new memo book?

s − m = 30 s-m=30 s − m = 3 0 3 s + 5 m = 810 3s+5m=810 3 s + 5 m = 8 1 0

s + m = 30 s+m=30 s + m = 3 0 3 s + 5 m = 810 3s+5m=810 3 s + 5 m = 8 1 0

s − m = 30 s-m=30 s − m = 3 0 5 s + 3 m = 810 5s+3m=810 5 s + 3 m = 8 1 0

s + m = 30 s+m=30 s + m = 3 0 5 s + 3 m = 810 5s+3m=810 5 s + 3 m = 8 1 0

The owner of a clothing store buys T-shirts for c dollars each and sells them for p dollars each. Last month she bought 600 T-shirts and sold 500 of them and made a profit of $2,800. This month she bought 400 T-shirts and sold them all and made a profit of $2,400. Which system of equations can be used to determine the values of c and p?

500 p − 600 c = 2 , 800 500p-600c=2,800 5 0 0 p − 6 0 0 c = 2 , 8 0 0 400 p − 400 c = 2 , 400 400p-400c=2,400 4 0 0 p − 4 0 0 c = 2 , 4 0 0

600 p − 500 c = 2 , 800 600p-500c=2,800 6 0 0 p − 5 0 0 c = 2 , 8 0 0 400 p − 400 c = 2 , 400 400p-400c=2,400 4 0 0 p − 4 0 0 c = 2 , 4 0 0

500 p − 600 c = 2 , 800 500p-600c=2,800 5 0 0 p − 6 0 0 c = 2 , 8 0 0 400 p − c = 2 , 400 400p-c=2,400 4 0 0 p − c = 2 , 4 0 0

600 p − 500 c = 2 , 800 600p-500c=2,800 6 0 0 p − 5 0 0 c = 2 , 8 0 0 400 p − c = 2 , 400 400p-c=2,400 4 0 0 p − c = 2 , 4 0 0

One wall inside a shoe store is used to display walking shoes and running shoes. There are 135 pairs of shoes in this display. There are 1.5 times as many pairs of walking shoes as there are running shoes on display. How many pairs of walking shoes and running shoes are on display?

81 pairs of walking shoes and 54 pairs of running shoes

90 pairs of walking shoes and 45 pairs of running shoes

54 pairs of walking shoes and 81 pairs of running shoes

45 pairs of walking shoes and 90 pairs of running shoes

What is the value of x in the solution to this system of equations? 3 x = 2 y + 14 3x=2y+14 3 x = 2 y + 1 4 y = − 6 x + 18 y=-6x+18 y = − 6 x + 1 8

− 10 3 -\frac{10}{3} − 3 1 0

Larry is starting his own lawn service company. He has initial setup costs totaling $300, plus ongoing operation expenses. The function representing Larry's expenses and the function representing Larry's income for lawn services are shown in the graph. Approximately how many lawns will Larry have to mow before he starts making a profit?

Larry must mow approximately 25 lawns before he starts making a profit.

Larry must mow approximately 300 lawns before he starts making a profit.

Larry must mow approximately 350 lawns before he starts making a profit.

Larry will start making a profit when he mows his first lawn.

5 6300 5\sqrt{6300} 5 6 3 0 0 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z"> Which expression represents the completely simplified radical?

150 7 150\sqrt{7} 1 5 0 7 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

5 63 5\sqrt{63} 5 6 3 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

10 700 10\sqrt{700} 1 0 7 0 0 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

Which expression is equivalent to z a ⋅ z b z c \frac{z^a\cdot z^b}{z^c} z c z a ⋅ z b ?

z ( a + b − c ) z^{\left(a+b-c\right)} z ( a + b − c )

z ( a − b − c ) z^{\left(a-b-c\right)} z ( a − b − c )

z ( a − b + c ) z^{\left(a-b+c\right)} z ( a − b + c )

z ( a + b + c ) z^{\left(a+b+c\right)} z ( a + b + c )

Algebra I Midterm Review (Unit 4, 5, & 6)

Authored by Steven Davis

Mathematics

8th - 9th Grade

CCSS covered

Used 5+ times

Algebra I Midterm Review (Unit 4, 5, & 6)

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which graph represents the inequality $-2x+7y\le112$ ?

Tags

CCSS.HSA.REI.D.12

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which graph represents the inequality $-2x+3y>12$ ?

Tags

CCSS.HSA.REI.D.12

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which coordinate pair is in the solution set for $y<1-6x$ ?

(1, 0)

(1, -1)

(0, 1)

(-1, 1)

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the effect on the graph of the linear parent function, $f\left(x\right)=x$ , when $f\left(x\right)$ is replaced by $f\left(x+5\right)$ ?

The graph of the line becomes steeper.

The graph of the line shifts horizontally right 5 units.

The graph of the line shifts vertically down 5 units.

The graph of the line shifts horizontally left 5 units.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Line G is graphed on the coordinate plane. Which linear equation can be used to represent a line parallel to line G passing through the point (-6, 1)?

$3x+2y=-16$

$2x+3y=-9$

$2x+3y=15$

$3x+2y=20$

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Line R is graphed on the coordinate plane. Which linear equation can be used to represent a line perpendicular to line R passing through the point (3, -6)?

$x-3y=21$

$3x+y=3$

$3x-y=15$

$3x-y=3$

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Given the line $4y=12$ , which statement is NOT true?

The line is parallel to the x-axis.

The line is perpendicular to the y-axis.

The line has a slope of zero.

The line has an undefined slope.

Tags

CCSS.8.EE.B.5

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A graph of a linear inequality in two variables is shown. Which linear inequality can be used to represent the graph?

$y>\frac{1}{2}x-3$

$y<2x-3$

$y<\frac{1}{2}x-3$

$y>2x-3$

Tags

CCSS.HSA.REI.D.12

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Algebra I Midterm Review (Unit 4, 5, & 6)

Which graph represents the inequality −2x+7y≤112-2x+7y\le112−2x+7y≤112 ?

Which graph represents the inequality −2x+3y>12-2x+3y>12−2x+3y>12 ?

Which coordinate pair is in the solution set for y<1−6xy<1-6xy<1−6x ?

What is the effect on the graph of the linear parent function, f(x)=xf\left(x\right)=xf(x)=x , when f(x)f\left(x\right)f(x) is replaced by f(x+5)f\left(x+5\right)f(x+5) ?

Line G is graphed on the coordinate plane. Which linear equation can be used to represent a line parallel to line G passing through the point (-6, 1)?

Line R is graphed on the coordinate plane. Which linear equation can be used to represent a line perpendicular to line R passing through the point (3, -6)?

Given the line 4y=124y=124y=12 , which statement is NOT true?

A graph of a linear inequality in two variables is shown. Which linear inequality can be used to represent the graph?

Seven data points are graphed on the scatterplot. Which statement identifies the correlation coefficient between the two variables and the correct interpretation of the correlation coefficient measure of the strength of the linear association?

The population of Webb County, Texas, from the year 2000 through 2010 is shown in the graph. If the trend shown in the graph continues, what will be the population of Webb County in 2015?

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Discover more resources for Mathematics

Which graph represents the inequality $-2x+7y\le112$ ?

Which graph represents the inequality $-2x+3y>12$ ?

Which coordinate pair is in the solution set for $y<1-6x$ ?

What is the effect on the graph of the linear parent function, $f\left(x\right)=x$ , when $f\left(x\right)$ is replaced by $f\left(x+5\right)$ ?

Given the line $4y=12$ , which statement is NOT true?