Linear Equations

Allie orders candles from an online company that offers flat rate shipping. She placed an order for 4 candles for $35. A few months later, she placed an order for 12 candles for $95. Write an equation in point-slope form to model the total cost, y, for ordering x candles. How much is shipping?

Which equations form a linear function?

Which equation represents the graph of the function with point (-2, 5) and slope of 3?

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

• y = 6; slope is -1

• x = 6; slope is zero

• y = 6; slope is 6

• x = 6; slope is undefined

Which equation represents y = -3x + 5 in point-slope form?

Which equation best represents the relationship between x and y in the table shown?

• y= 5x+5

• y=1/5x+5

• y=15x+5

• y=10x+5

Bob has $150 in his savings account and saves $40 per month.

• y=150 + 40

• y=40x + 150

• y=150x + 40

Find the initital value

• 20

• 0

• 17

• 1

What is the initial value?

• 3

• 0

• 2

• 8

Find the rate of change from the graph

• 0

• undefined

• 5

• -5