Finding Y = MX + B

The temperature in a city decreases at a rate of 2 degrees per hour. Write the equation in slope-intercept form to represent the temperature over time.

• y = 2x + 0

• y = -2x + 0

• y = 2x

• y = -2x

A company produces 200 units of a product initially and then increases production by 50 units every month. Write the equation in slope-intercept form to represent the total number of units produced.

• y = 50x + 200

• y = 200x + 50

• y = 200x - 50

• y = 50x - 200

A garden is expanding at a rate of 3 square feet per week. Write the equation in slope-intercept form to represent the total area of the garden over time.

• y = 3x

• y = -3x + 0

• y = -3x

• y = 3x + 0

A phone plan costs $20 per month plus $0.10 per minute. Write the equation in slope-intercept form to represent the total cost of the phone plan.

• y = 0.10x - 20

• y = 20x + 0.10

• y = 0.10x + 20

• y = 20x - 0.10

The population of a town is decreasing at a rate of 100 people per year. Write the equation in slope-intercept form to represent the population over time.

• y = 100x + 0

• y = -100x + 0

• y = 100x

• y = -100x

A company's profit is $500 initially and increases by $50 every month. Write the equation in slope-intercept form to represent the total profit over time.

• y = 50x + 500

• y = 500x + 50

• y = 50x - 500

• y = 500x - 50

The height of a tree is increasing at a rate of 0.5 feet per year. Write the equation in slope-intercept form to represent the height of the tree over time.

• y = -0.5x

• y = 0.5x + 0

• y = -0.5x + 0

• y = 0.5x

A car's value depreciates by $1000 per year. Write the equation in slope-intercept form to represent the value of the car over time.

• y = -1000x

• y = 1000x

• y = 1000x + 0

• y = -1000x + 0

Write equation of the line containing (2,6) and (3,1)

• y = 5x - 14

• y = -5x - 14

• y = -5x + 16

• y = -5x + 6

Write equation of the line containing (-3,4) and (0,-5)

• y = -3x - 5

• y = -3x + 1

• y = -3x + 13

• y = 3x + 1