Slope-Intercept Form

What is the correct slope-intercept form?

• y = mx + b

• y = mb + x

• y = x

• y = -mx + b

What would the slope of the graph be?

• Positive

• Negative

• 0

• Undefined

What kind of slope does the graph have?

• Positive

• Negative

• 0

• Undefined

What kind of slope does the graph have?

• Positive

• Negative

• 0

• Undefined

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 the equation of the line in slope-intercept form.

• y = -2x - 5

• y = 2x - 5

• y = -2x

• y = -1/2x - 5

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