Question

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Which graph represents the function?

f(x) = 2√x + 1

Answer 1

So the y-int is 1 so it has the intercept the y axis at 0,1. Then it’s a curved line since it’s the sqrt of x. So the answer is bottom left one.

Answer 2

Answer: (C) bottom left graph

Explanation:

f(x)=2√x + 1

The number inside the square root symbol must be greater than or equal to zero, so there is a restriction on x. x ≥ 0

The only graphs that satisfy this restriction are graphs C and D.

The restriction on "x" creates a restriction on "y". Since x≥0, then:

f(0) ≥ 2√0 + 1

f(0) ≥ 1

So, y must be greater than or equal to 1. The only graph that satisfies thie restriction is the graph on the bottom left.