Question

Find the derivative of f(x) = 5x + 9 at x = 2.
A)9

b)5

c)0

d)10

Answer 1

im not entirely sure how to do find the derivative

Answer 2

@SweetsAndEverything

Answer 3

the derivative of any linear equation is a constant...and it's always the slope of that line

Answer 4

this is because the derivative is the slope of the tangent line

but any tangent line to some line is that same line, so it's a bit redundant, but it means that the slope of that line is the derivative

Answer 5

so would it be 9?

Answer 6

9 is the y-intercept

NOT the slope

Answer 7

y = mx+b

m = slope
b = y-intercept

Answer 8

oh so its 5?

Answer 9

@jim_thompson5910

Answer 10

or 10?

Answer 11

@hartnn @amoodarya @brookester6 @Carniel @Darreius