writing and graphing linear equation

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

• y-intercept

• slope (growth rate)

• y-axis

• x-intercept

What is the slope (growth rate) of the equation y = -3x - 9

• -9

• 9

• 3

• -3

Which letter represents the slope in the equation y = mx + b ?

• x

• y

• m

• b

In the following equation, what is the y-intercept?

y = -3x + 7

• (0,-3)

• (0,7)

• (0, -3/7)

• (0,3)

Find the slope of the line that passes through the points (2, 4) and (6, 12)

• 1/2
• -1/2
• 2
• -2

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

Y = mx + b

m stands for constant rate of change?

• True

• False

What is the constant rate of change for this equation?

Y = -5x - 2

• -5

• -2

If a linear equation has positive slope, the graph would go up from left to right

• True

• False

A golf club decides to fix their fees as this; a SIGN up fee of $50 and to play each game $20. What could be a possible linear equation that could represent the money you have to pay for them as a member?

• Y = 20X + 50

• Y = 50X + 20

• Y = 50X

• Y = 20X