SOLUTION: Evaluate f(x)= 4x^2 - 2 for f(1/2)

SOLUTION: Evaluate f(x)= 4x^2 - 2 for f(1/2)

Algebra.Com

Question 274760: Evaluate f(x)= 4x^2 - 2 for f(1/2)
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given equation.

Plug in .

Square to get .

Multiply and to get .

Combine like terms.
RELATED QUESTIONS
Evaluate f(x)= 4x^2 - 2 for f(1/2) (answered by jim_thompson5910)

evaluate given function for f(3) and f(-2)... (answered by eggsarecool)

Evaluate: F(-2) for f(x) = x+1 _____... (answered by edjones)

30) If f(x) = -3x2 � 4x + 5, evaluate for f(0) and f(2) (answered by Mathtut)

If f(x)=3x^2-4x+1 and g(x)=2x-1, evaluate... (answered by tommyt3rd)

Evaluate f''(2) for the function... (answered by Edwin McCravy)

Evaluate the function for the given value of x: 1.) f(x) = 80-3x; f(5) 2.) f(x) = (answered by jennywecas)

evaluate each function rule for x= -2 f[x]=x-2 f[x]= 1/2x+2 (answered by longjonsilver)

Using f(x)=x+5 and g(x)=4x, evaluate the composition:... (answered by rapaljer)