Find the derivative of f(x) = |x + 2| at the point (1,3). Select one:
O a. -1
O b. 0
Oc. 1
Od. does not exist

i believe it is c.y = 9x

rise over run. 9 units up over 1 unit right or 9/1

the answer is 31.27mph

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation:

c

step-by-step explanation: