Quiz about 9.5 STAAR Review Linear Key Features

Question 1

Which graph shows a line with an x-intercept of -5?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 2

The graph models the linear relationship between the number of monthly payments made on a loan and the remaining balance in dollars left to pay on the loan.

Which statement describes the x-intercept of the graph?

Accepted Answer

The x-intercept is 60, which represent the number of monthly payments needed to repay the loan.

Answer

The x-intercept is 60, which represent the initial balance in dollars of the loan.

Answer

The x-intercept is 27,000, which represent the initial balance in dollars of the loan.

Answer

The x-intercept is 27,000, which represents the number of monthly payments needed to repay the loan.

Question 3

Linear function t has an x-intercept of -1 and a y-intercept of 5. Which graph best represents t?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 4

Linear function t has an x-intercept of -1 and a y-intercept of 5.

Which equation best represents t?

Accepted Answer

y = 5x + 5

Answer

y = -x - 1

Answer

y = -1x + 5

Answer

y = 5x - 1

Question 5

Linear function k has a zero of -2 and a y-intercept of 6. Which graph best represents k?

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 6

The table represents some points on the graph of a linear function.

What is the rate of change of y with respect to x for this function?

Accepted Answer

$$-\frac{9}{2}$$

Answer

$$\frac{2}{9}$$

Answer

$$\frac{9}{2}$$

Answer

$$-\frac{2}{9}$$

Question 7

The table represents some points on the graph of a linear function.

Which function represents the table

Accepted Answer

$$y=-\frac{9}{2}x+3$$

Answer

$$y=-\frac{2}{9}x-3$$

Answer

$$y=\frac{9}{2}x-7$$

Answer

$$y=-\frac{2}{9}x-7$$

Question 8

The function $$y=3.75+1.5\left(x-1\right)$$ can be used to determine the cost in dollars for a taxi ride of x miles. What is the rate of change of the cost in dollars with respect to the number of miles?

Accepted Answer

$1.50 per mile

Answer

$3.75 per mile

Answer

$4.25 per mile

Answer

$5.25 per mile

Question 9

What is the slope of the line represented by $$5x-12y=24$$ ?

Accepted Answer

$$\frac{5}{12}$$

Answer

$$-2$$

Answer

$$\frac{24}{5}$$

Answer

$$-12$$

Question 10

Which equation best represents the line shown on the grid?

Accepted Answer

$$y=-6$$

Answer

$$y=0$$

Answer

$$x=0$$

Answer

$$x=-6$$

Question 11

What is the equation of the line that passes through the point (-2 , 7) and has a slope of zero?

Accepted Answer

$$y=7$$

Answer

$$x=7$$

Answer

$$y=-2$$

Answer

$$x=-2$$

Question 12

What are the equation and slope of the line shown on the grid?

Accepted Answer

$$x=6$$ ; slope is undefined

Answer

$$y=6$$ ; slope is $$-\frac{1}{6}$$ .

Answer

$$x=6$$ ; slope is zero.

Answer

$$y=6$$ ; slope is 6.

Question 13

What is the equation in slope-intercept form of the line that passes through the point (5 , 0) and is parallel to the line represented by $$y=1.2x+3.8$$ ?

Accepted Answer

$$y=1.2x-6$$

Answer

$$y=-1.2x+6$$

Answer

$$y=1.2x+5$$

Answer

$$y=-1.2x-5$$

Question 14

What is the equation in slope-intercept form of a line that crosses the x-axis at 36 and is perpendicular to the line represented by $$y=-\frac{4}{9}x+5$$ ?

Accepted Answer

$$y=\frac{9}{4}x-81$$

Answer

$$y=\frac{4}{9}x+16$$

Answer

$$y=\frac{4}{9}x-16$$

Answer

$$y=\frac{9}{4}x+81$$

Question 15

The table represents some points on the graph of a linear function.

Which equation represents the same relationship?

Accepted Answer

$$y+268=12\left(x+20\right)$$

Answer

$$y+268=\frac{1}{12}\left(x+20\right)$$

Answer

$$y+20=\frac{1}{20}\left(x+20\right)$$

Answer

$$y+20=12\left(x+268\right)$$

Question 16

The graph of a linear function is shown on the grid.

Which equation is best represented by this graph?

Accepted Answer

$$y+7=-3\left(x-4\right)$$

Answer

$$y+1=-3\left(x+2\right)$$

Answer

$$y-4=3\left(x+7\right)$$

Answer

$$y-2=3\left(x-1\right)$$

9.5 STAAR Review Linear Key Features

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