A given line has the equation . What is the equation, in slope-intercept form, of the line that is perpendicular to the given line and passes through the point (0, 9)?

Answer 1

You've left off the equation itself, but perpendicular lines have opposite reciprocal slopes, like 2 and -1/2 or 4/5 and -5/4.

Remember that all along the y-axis, x = 0, so you've been given your y-intercept.

Flip your slope (m), change the sign, and add your y-intercept, or b.

y = mx + b

Answer 2

if the given equation is y=mx +b

then a perpendicular line is: y=-x/m + c

through the point (0,9) means y intercept of 9 c=9

the perpendicular line is y= -x/m + 9