Extra Credit - Writing Linear Equations

Equation of the line through (3,-1) with slope 2.

Write the equation of the line.

Rate of change for the given graph? Options: 80, 20, 40, 160

Find the rate of change. Options: -2 minutes per gallon, -20 minutes per gallon, -2 gallons per minute, -20 gallons per minute

Initial value of Tim's phone purchase (paid $125 on purchase day, $50/month after).

Bob has $150 in his savings account and saves $40 per month. What is the equation for his savings over time?

What is the equation of this line? Options: 0, undefined, y = -2, x = -2

Equation of the line in the graph?

Equation of a vertical line through (-8, 3)