Question

3. If g(x) = x2 + 3, find g(4). (1 point)

Answer 1

3. If you have to find g(4), then you should substitute x=4 instead of x into the expression of the function $g(x)=x^2+3.$ So:

$g(4)=4^2+3=16+3=19.$

Answer 3: correct choice is B.

4. If you have to find x such that h(x)=11,, then you should substitute 11 instead of h(x) into the expression of the function $h(x)=2x+1.$ So:

$11=2x+1,\\ 2x=10,\\x=5.$

Answer 4: correct choice is A.

Answer 2

Given: 
g(x) = x^2 + 3,
g(4) = ?

Plugging x=4 into the main function:
We get,
g(4)= 4^2 + 3
      =16+3
      = 19.
Answer is the second option 19