Question

Write the equation of a line perpendicular to y=3x+5 and passes through the point (1,7).

Answer 1

y = -3x + 10

Explanation:

The slope of perpendicular line is the opposite and reciprocal of the original line.

3 -> -3

Find the new y-intercept.

y = -3x + b

7 = -3(1) + b

7 = -3 + b

10 = b

y = -3x + 10

Best of Luck!