If f(x) = x2 + 7, what is the value of f(3)?

a)2
b)12
c)13
d)16

Assuming that x2 is x^2, or x squared, than the answer is D, 16

Step-by-step explanation:

f(3)=3^2+7

f(3)=9+7

f(3)=16

I hope this helps!

D)16

Step-by-step explanation:

F(x)=3^2+7

      =9+7=16

90% rotation

step-by-step explanation:

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.