How would you solve the equation 3a + 7 = - 2 by graphing?
A. Graph y = 3a + 7, and find where it crosses the x-axis.
B. Graph y = 3a + 7 and y = -2, and find where they cross the y-axis.
C.
Graph y = 3a + 7 and y = -2, and find the coordinates of the point of intersection. The y-coordinate
of the intersection point is the solution.
D.
Graph y = 3a + 7 and y = -2, and find the coordinates of the point of intersection. The a-coordinate
of the intersection point is the solution.
