Answer:
12 and 6
Step-by-step explanation:
The equation is not properly formatted presumably here is the format.
Given
[tex]f(x) = 2x^2 + 4[/tex]
determine f(2) , and f(−1).
So we are expect to perform substitution operation and return an answers for values of x= 2 and x= -1
1. When x= 2 we have
[tex]f(2) = 2*2^2 + 4\\\\f(2)= 2*4+4\\\\f(2)= 8+4\\\\f(2)= 12[/tex]
2. When x= -1 we have
[tex]f(-1) = 2*-1^2 + 4\\\\ f(-1)= 2*1+4\\\\ f(-1)= 2+4\\\\ f(-1)= 6[/tex]
