Question

Name

(Score for Question 2:
of 4 points)
2. Jaxon bought a cell phone. The cell phone's down payment is $35. There is a monthly cost of $20.
A. Write an equation that gives the total cost (in dollars) of paying a down payment for a cell
phone and paying a monthly payment as a function of the number of months needed to pay
off the phone in full. Write the equation in slope-intercept form.
-
Date
y=mx+b
Math 4.10 | Unit 4 Test, Part 2 | Lines | Page 2 of 4
B. Find the total cost if it takes 10 months to pay off the cell phone in full. Show your work.

Answer 1

Y= 20x + 35

Step-by-step explanation: I have the same test.

Answer 2

in order to create the question, we need to first determine the y intercept and the slope. the y intercept is going to be 35 because that is the value Jaxon pays before any time has passed (at x value 0). the slope is going to be 20 since that is how much he will pay every month.

2a. y = 20x + 35

2b. y = 20(10) + 35
y = 200 + 35
y = $235
it will cost $235 to pay the phone in full in 10 months.