Linear Relationships (Unit 4) Pretest

Find the slope of the line graphed above.

• 2

• -2

• $\frac{1}{2}$

• $\frac{-1}{2}$

Find the unit rate demonstrated in the graph.

• 9 miles per hour

• 4.5 miles per hour

• 3 miles per hour

• 1.5 miles per hour

Which situation is best described by the graph shown?

• Allison purchases lemons for $0.75 each

• Sophia buys 12-packs of soda for $1.75 each.

• Jacob buys packs of gum for $1.50 each.

• Garrett buys limes for $0.80 each.

The triangles lie on the same line.  Find the horizontal distance of the smaller triangle.

• 2

• 25

• 10

• 5

Which of the following is always true about the graph of a horizontal line?

• The graph will have a positive y-intercept.

• The graph will have a negative y -intercept.

• The slope of the graph will be undefined.

• The slope of the graph will be zero.

What can we conclude about the triangles on the line shown above.

• The triangles are congruent and therefore have the same slope.

• The triangles are similar and therefore have the same slope.

• The triangles are similar but do not have the same slope.

• The triangles are unrelated to one another.

 A line has a slope of  $\frac{9}{5}$  , If one of the points on the line is (-10, -16), which of the following could be another point on the line?

• (-5, -6)

• (0, 2)

• (4, 11)

• (10, 22)

Find the slope of the line contains the following point.

(6, -2) and (-3, 1)

• Undefined

• zero

• -3

• $\frac{-1}{3}$

A line has a slope of -6. Which of the following could describe two points on the line?

• (-3, 33) and (4, -9)

• (-2, 28) and (0, 15)

• (-5, 45) and (-6, 50)

• None of the above

A car repair company charges $15 for an evaluation plus and hourly rate for any services required. What is the hourly charge for services?

• $150

• $15

• $20

• $75