Quiz about Review Unit 3

Question 1

Write the equation of a line PARALLEL to y = 2x + 3 that passes through the point (3, 1).

y - y1 = m (x - x1)

Accepted Answer

$$y=2x-5$$

Answer

$$y=2x\ -3$$

Answer

$$y=2x\ +\ 1$$

Answer

$$y=-\frac{1}{2}x+\frac{5}{2}$$

Question 2

Write the equation of a line PARALLEL to that passes through the point (3, 1). $$y=-\frac{5}{2}x+10$$

y - y1 = m (x - x1)

Accepted Answer

$$y\ =-\frac{5}{2}x+\frac{17}{2}$$

Answer

$$y=-\frac{5}{2}x\ +\ 6$$

Answer

$$y=\frac{2}{5}x+6$$

Answer

$$y=\frac{2}{5}x+\ 8$$

Question 3

Write the equation of a line PERPENDICULAR to $$y=\frac{1}{3}x-9$$ that passes through the point (-6, 10).

Accepted Answer

$$y=-3x-8$$

Answer

$$y=\frac{1}{3}x-9$$

Answer

$$y=\frac{1}{3}x+10$$

Answer

$$y=-3x+6$$

Question 4

Write the equation of a line PERPENDICULAR to $$y=\frac{1}{3}x-9$$ that passes through the point (-6, 10).

y - y1 = m (x - x1)

Accepted Answer

$$y=-3x-8$$

Answer

$$y=\frac{1}{3}x-9$$

Answer

$$y=\frac{1}{3}x+10$$

Answer

$$y=-3x+6$$

Question 5

Two lines that are parallel will have ...

Accepted Answer

Slope that is the same

Answer

Slope that is opposite reciprocals

Answer

No slope

Answer

none of the above

Question 6

Two lines that are perpendicular lines have ...

Accepted Answer

Slope that is opposite reciprocals

Answer

No Slope

Answer

Slope that is the same

Answer

none of the above

Question 7

What slope is parallel to:
m = 4

Accepted Answer

4

Answer

-1/4

Answer

-4

Answer

1/4

Question 8

What slope is perpendicular to:
m = 5/8

Accepted Answer

-8/5

Answer

-5/8

Answer

5/8

Answer

8/5

Question 9

A line is parallel to y = 2x - 7.
What is it's slope?

Accepted Answer

2

Answer

-2

Answer

1/2

Answer

-1/2

Question 10

Find the slope of the line through each pair of points.

(8, 4) and (2, 6).

$$\frac{y2-y1}{x2-x1}$$

Accepted Answer

$$\frac{-1}{\ \ 3\ }$$

Answer

$$\frac{\ 1\ }{\ 3\ }$$

Answer

1

Answer

-1

Question 11

Find the slope of the line through each pair of points.

(5,-6) and (12, -6).

$$\frac{y2-y1}{x2-x1}$$

Accepted Answer

0

Answer

$$\frac{12}{7\ }$$

Answer

$$\frac{7\ }{12}$$

Answer

Undefined

Question 12

Find the slope, remember that m = $$\frac{rise\ }{run\ \ }$$

Accepted Answer

-4/3

Answer

-3/4

Answer

4/3

Answer

3/4

Question 13

What type of slope?

Accepted Answer

negative

Answer

positive

Answer

zero slope

Answer

downward slope

Question 14

What type of slope?

Accepted Answer

undefined

Answer

negative

Answer

steep

Answer

zero slope

Question 15

What type of slope?

Accepted Answer

zero slope

Answer

undefined

Answer

positive slope

Answer

negative slope

Question 16

What is the slope?

$$\frac{y2-y1}{x2-x1}$$

Accepted Answer

2

Answer

1/2

Answer

7

Answer

3

Question 17

What is the slope?

Accepted Answer

-5

Answer

-1/5

Answer

-4

Answer

-6

Question 18

Which of these represents point-slope form of a linear equation?

Accepted Answer

y - y₁ = m(x - x₁)

Answer

Ax + By = C

Answer

y = mx + b

Question 19

Select all of the following equations in point-slope form.

Accepted Answer

y + 2 = 1/4(x + 4)

Accepted Answer

y - 2 = 5(x - 2)

Answer

3x + 2y = 12

Answer

y = 4x + 6

Answer

2y = 5x - 7

Question 20

Write the equation in point-slope form

for the line that contains the points

(3, -5) and (5, - 1)

What do you need for point slope form?

Point (x1 , y1) and a Slope m

y - y1 = m (x - x1)

Accepted Answer

y + 5 = 2(x - 3)

Answer

y - 5 = 2(x + 3)

Answer

y - 3 = 2(x + 5)

Answer

y + 3 = 2(x - 5)

Question 21

What is the slope intercept form for

y + 7 = -1/4(x - 4)

Accepted Answer

y=-1/4x-6

Answer

y=-1/4x+6

Answer

y=7/4x+28

Answer

y=1/4x+6

Question 22

Write the equation of the line in Point-Slope form that goes through the point (10,5) and has a slope of -3

Accepted Answer

y - 5 = -3(x - 10)

Answer

y= -3x + 35

Answer

y + 5= -3(x + 10)

Answer

y= -3x - 35

Question 23

What is the y-intercept for the given graph?

Accepted Answer

-1

Answer

-5

Answer

5

Answer

1

Question 24

What is the x-intercept for the given graph?

Accepted Answer

1

Answer

-2

Answer

2

Answer

1/2

Question 25

What is the x-intercept shown on the graph?

Accepted Answer

(-2, 0)

Answer

(2, 0)

Answer

(0, 3)

Answer

(3, 0)

Question 26

What is the y-intercept shown on the graph?

Accepted Answer

(0, 3)

Answer

(0, -2)

Answer

(3, 0)

Answer

None of these.

Question 27

Identify the graph with a x-intercept of -2 and y-intercept of 2

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Review Unit 3

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