Quandaries
and Queries
My name is Amy
My level is college algebra
I am a student
My problem is: Write the equation of the line that contains the point (-4,6) and is perpendicular to the line y=5x+100.
Hi Amy,
I would first draw a diagram, even if it is only a mental diagram in my head.
The fact you need is that if two lines are perpendicular then the product of their slopes is -1. The slope of the line y = 5x + 100 is 5 and thus the slope of a perpendicular line is -1/5.
Can you complete it now?
Penny