CPM Homework Help : PC Problem 1-119

Find the equation of the line perpendicular to $3x − 7y = 42$ which passes through the point $\left(−3, − 8\right)$ .

Step 1:

Solve for y to find the slope.

Step 2:

The perpendicular slope would be the negative reciprocal of the slope of the line.

Step 3:

Substitute the new slope and the point into the point-slope form of a line.

Answer:

$-\frac{7}{3}$