Slope-Intercept Equations: Identify and Graph Linear Costs

1. A car rental company charges a flat fee of $20 plus $0.15 per mile driven. Write the equation in slope-intercept form and identify the slope and y-intercept.

• Slope: 0.15, Y-intercept: 15

• Slope: 0.10, Y-intercept: 20

• Slope: 0.20, Y-intercept: 0.15

• Slope: 0.15, Y-intercept: 20

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

2. A gym charges a monthly membership fee of $30 and an additional $5 per class attended. What is the slope and y-intercept of the cost equation?

• Slope: 5, Y-intercept: 30

• Slope: 5, Y-intercept: 50

• Slope: 10, Y-intercept: 30

• Slope: 30, Y-intercept: 5

3. A phone plan costs $25 per month plus $0.10 per text message sent. Graph the equation and identify the slope and intercept.

• Slope: 0.25, Intercept: 10

• Slope: 0.05, Intercept: 30

• Slope: 0.15, Intercept: 20

• Slope: 0.10, Intercept: 25

4. A delivery service charges a base fee of $10 plus $2 for each mile driven. Write the equation in slope-intercept form and graph it.

• y = 2x - 10

• y = 2x + 10

• y = 10 + 2x

• y = 10x + 2

Tags

CCSS.8.EE.B.5

5. A school is selling tickets for a play at $5 each. If they have a fixed cost of $100 for the venue, write the equation and identify the slope and intercept.

• Slope: 100, Intercept: 5

• Slope: 0, Intercept: 100

• Slope: 5, Intercept: 100

• Slope: 5, Intercept: 0

7. A subscription service charges $12 per month plus a one-time fee of $50. What is the slope and y-intercept of the cost equation?

• Slope: 0, Y-intercept: 50

• Slope: 50, Y-intercept: 12

• Slope: 12, Y-intercept: 0

• Slope: 12, Y-intercept: 50

8. A local bakery sells cupcakes for $3 each and has a fixed cost of $20 for ingredients. Write the equation and identify the slope and intercept.

• Equation: Total Cost = 20 - 3x; Slope: -3; Intercept: 20

• Equation: Total Cost = 20 + 3x; Slope: 3; Intercept: 20

• Equation: Total Cost = 20 + 5x; Slope: 5; Intercept: 20

• Equation: Total Cost = 3x - 20; Slope: -3; Intercept: -20

9. A taxi service charges a base fare of $2.50 plus $1.50 per mile. Graph the equation and identify the slope and intercept.

• Slope: 1.5, Intercept: 3.0

• Slope: 2.5, Intercept: 1.5

• Slope: 1.5, Intercept: 2.5

• Slope: 1.0, Intercept: 2.0

10. A streaming service charges $10 per month with a one-time setup fee of $30. Write the equation in slope-intercept form and identify the slope and intercept.

• C = 10m + 30; slope = 10, intercept = 30

• C = 30m + 10; slope = 30, intercept = 10

• C = 10m + 50; slope = 10, intercept = 50

• C = 10m + 10; slope = 10, intercept = 10

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3