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7-9.

Write the equation of the line with x-intercept (–4, 0) and y-intercept (0, 9). Homework Help ✎

Use the slope-intercept form of a line (y = mx + b).

Substitute the y-coordinate of the y-intercept for b in the equation.

Find the slope using any method you like, then substitute that value for m to finish writing the equation.