Use the graph of the line shown.
3145 4
15,1
26-4
1-2
2
a. Write a point-slope form of the equation for the line shown.
b. Estimate the value of the y-intercept of the line.
c. Construct Arguments Use proportional reasoning to support your conjecture about the value of the y-intercept.
d. Rewrite the point-slope form of the equation in slope-intercept form to check your conjecture.