Modeling Situations Using Linear Relationships

Point-Slope Form:
Write the equation of the line through (8, 11) and (5, -1) in point-slope form.

• y+1=4(x-5)
• y-1=4(x-5)
• y=4x-21
• y=4x-19

Graph 2x - y = 4

• A

• B

• C

• D

How do you change

y-4=3(x+3) into slope-intercept form?

• y=23x-1/23

• y=3x+13

• y-7x=9

• y=13-3x

Give the x-intercept

3x + 8y = 24

• (8, 0)

• (0, 8)

• (3, 0)

• (0, 3)

Given the following table, write the linear equation.

• y = 9x + 3

• y = 3x + 12

• y = 3x + 9

• y = 1x + 12

A 7-inch candle burns at a rate of 2-inches per hour. Which equation represents the relationship between y, the height of the candle in inches, and x, the number of hours the candle burns?

• y=2x+7

• y=-2x+7

• y=2-7x

• y=7x+2

A driving range charges $4 to rent a golf club plus $2.75 for every bucket of golf balls you hit. Write an equation that shows the total cost c of hitting b buckets of golf balls.

• c = 2.75b + 4
• c = 2.75b
• c =  4b- 2.75
• c = 2.75b - 4

d=125 + 80n models the amount of money (d) in the register after selling n tickets. How much money does she have in the register before selling any tickets? 

• $125
• $80
• $205
• $45

Which is the graph of y= -x + 2?

• A
• B
• C
• D

Graph x = 2

• A
• B
• C
• D