Linear Equations Review

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

• y-intercept
• slope
• macaroni
• nothing

What is the slope of the graph?

• -2

• 2

• 1/2

• -1/2

The starting point in a situation is represented by the _______________

• slope

• y-intercept

• m

• x value

What kind of slope does the graph have?

• Positive

• Negative

• 0

• Undefined

Write the equation of the line in slope-intercept form.

• y = -1

• y = -x

• y = -x - 1

• y = 2x

Write an equation for the line in slope-intercept form.

• y = 1/2x

• y = -1/2x

• y = 2x + 1

• y = -2x - 2

Jackson started with $800 in his savings account, but has to pay $30 a month for his electricity bill. Write an equation that relates his savings, y, to the amount of months, x.

• y = -30x + 800

• y = 30x - 800

• y = -30x

• y = 12x - 30

Stephanie owes her mom $80 for a recent trip to the mall. She plans to payback $15 a month until it is paid back. Write an equation in slope-intercept form that relates the amount she owes, y, to the amount of months, x.

• y = 15x - 80

• y = 15x + 80

• y = -15x + 80

• y = -15x - 80

Given the equation y = -3x - 5, what would the ordered pair be if you subbed in x = 2?

• (2, -11)

• (2, -1)

• (2, 1)

• (2, 11)

Given the slope-intercept form equation of y = 1/2x + 7, what is the ordered pair if x = -10?

• (-10, 2)

• (-10, -12)

• (-10, 8)

• (-10, 9)