Module 5 Review Activity

Slope of -2 and y intercept (0, -3)

Identify the equation?

• y = -5x

• y = -2x -3

• y = -3x - 2

• y = -2x

What is the slope of the equation?

y = 4x + 5

• m = 4

• m = 4x

• m = 5

How do you know you have a y intercept? (3 correct answers)

• When x = 0, then the y value is the y-intercept

• (0, b)

• When you have a graph, you can identify the point at which the line crosses the y axis

• When you have a graph, you can identify the point at which the line crosses the x axis

Veronica starts a savings account with $45. Every week, she deposits $15. What is the equation is slope intercept form?

• y = -15x + 45

• y = 45X + 15

• y = 45x - 15

• y = 15x + 45

Two friends went bowling. Each person paid to rent shoes for $2. They bowled the same amount of games for $4 per game. Write an equation in slope intercept form for this situation.

• y = 2x + 4

  x = total cost of bowling

  y = number of games

• y = 4x + 2

  x = total cost of bowling

  y = number of games

• y = 4x + 2

  x = number of games

  y = total cost of bowling

• y = 2x + 4

  x = number of games

  y = total cost of bowling

If you have the equation y = -2.75x + 25 where x is the number of car washes and $25 is the amount on a gift card to the car wash, what does the slope represent? (3 answers are true, so choose 3, please)

• The slope represents the cost of each car wash.

• $2.75 deducted from the gift card each visit.

• m = -2.75

• When y = 0, then x =-2.75

In the equation y = 1.45x - 17, what is the initial amount (y intercept)?

2 answers.

• 1.45

• (0, -17)

• 17

• -17

Find the slope. (9, 19) and (-3, 16).

Choose 2 answers.

Find the slope for the line between these two points: (0, -4) (-4, 0).

• m = 8

• m = 1

• m = -1

The equation y = 2x + 4 represents the total cost (y), of jumping at Sky Zone, for the number of hours there (x).

If you jump for 2 hours, how much would you pay?

• $12

• $8

• $ - 1

• $6