Question

what is the slope of the line normal to the graph f(x) = 2x + 1 at x =6 ? Also, can I get the step-by-step on how to do it?

Answer 1

your graph is a line

Answer 2

slope of a line is constant. in this case it is 2, so it is 2 if x = 6 or x = any number

Answer 3

how about f(X) = 2x^2 + 1

Answer 4

which means the normal line will have slope
\[-\frac{1}{2}\]

Answer 5

take the derivative.
do you know it?

Answer 6

let me work it out

Answer 7

f'(x) = 4x, right?