Writing Equations in Slope-Intercept Form

A fitness club opens with 80 members. Each month the membership increases by 15 members. Which equation represents the relationship between the number of months the club has been opened, x, and the total fitness club membership, y?

• y=15x

• y=15x+80

• y=x+15

• y=80x+15

Which of the following situations could be descried by the equation y= -25x + 120

• There are 120 people in the football stadium, and 25 more are entering each hour.

• A plumber charges $25 for a house call and $120 per hour.

• A teacher has 120 students. Her third period has 25 students

• There are 120 gallons of water in a tank. It releases water at a rate of 25 gallons per minute

Charlie rented a moving truck. He paid a daily fee plus a per-mile fee to rent the truck. The equation below represents the daily amount Charlie paid for the truck if he drives it x miles.
y=0.5x+10
What does the slope of the graph of this equation represent?

• The daily fee for the moving truck

• The per-mile fee for the moving truck

• How much Charlie paid for the truck

• The number of miles he drove

What is the slope of the following graph?

• 0

• 1

• 1/2

• 2

Find the slope

• -5/7

• 7/5

• -7/5

• 5/7

Which letter is the slope in slope-intercept form?

• y

• m

• x

• b

Write an equation in slope-intercept form given the following:

Slope = 4

Y-Intercept = -5

Mathematical Equivalence

ON

Write an equation in slope-intercept form given the following:

Slope = -2

Y-Intercept = 10

Mathematical Equivalence

ON

Write an equation in slope-intercept form given the following:

Slope = -1/2

Y-Intercept = 3

Mathematical Equivalence

ON

Write an equation in slope-intercept form given the following:

Slope = -3/4  Point (-8, 6)

• y = -3/4x +6

• y= -3/4x

• y= -3/4x-8

• y=4x-9