Slope Intercept Form from a Word Problem

What does "m" represent in y=mx+b?

• y-intercept

• slope

• macaroni

• nothing

Write the equation that represents this word problem:

Miles makes tacos at a restaurant. He has already made 8 tacos, and can make 3 tacos per minute.

• y= 8x + 3x

• y= 3x + 8

• y= 8x + 3

• y= 3 + 8

• Answer Not Here

Write the equation that represents this word problem: Nora owes her parents $400 for a computer, so she babysits for $10 per hour.

• y= 10x + 400

• y= -10x - 400

• y=10x - 400

• y= -10x + 400

• Answer Not Here

The temperature in a city is decreasing at a rate of 2 degrees per hour. If the current temperature is 25 degrees, write an equation in slope-intercept form to represent the temperature as a function of time.

• y = -2x + 25

• y = -2x - 25

• y = 2x + 25

• y = 2x - 25

A plumber charges $25 for a service call plus $50 per hour of service. Write an equation in slope-intercept form for the cost, C, after h hours of service.

• C = 50h + 25

• C = 25h + 50

• C = 50h - 25

• H = 25h - 50

A plumber charges $25 for a service call plus $50 per hour of service. Write an equation in slope-intercept form for the cost, C, after h hours of service. What will be the total cost for 8 hours of work?

• $425 for 8 hours of work

• $250 for 8 hours of work

In order to join an online learning community, there is a $20 startup fee and a $5 monthly fee. Write an equation in slope-intercept form that models this situation.

In order to join an online learning community, there is a $20 startup fee and a $5 monthly fee. Write an equation in slope-intercept form that models this situation.

• y = 20x + 5

• y = 5x +20

• y=-5x + 20

• y = 5x - 20

Suppose that a bike rents for $4 plus $1.50 per hour. Write an equation in slope-intercept form that models this situation.

• y = 4x + 1.50

• y = 1.50x + 4

• y = -4x +1.50

• y = 4x - 1.50

A man is climbing down from 100 feet high descending 30 feet per minute.

• y = - 30x + 100

• y = 100 + 30x

• y = 100x + 30

• y = 100x - 30