SOLUTION: Given the functions h(x) = 12x + 3 and f(x) = x^2, which value of x makes h(x) = f(x)? a) 0 b) 1 c) 2 d) 3

Question 1062561: Given the functions h(x) = 12x + 3 and f(x) = x^2, which value of x makes h(x) = f(x)?
a) 0
b) 1
c) 2
d) 3
Found 2 solutions by math_helper, MathTherapy:
Answer by math_helper(2461) (Show Source): You can put this solution on YOUR website!
Ordinarily, I'd recommend you set h(x) = f(x) and solve for x. However, there are only 4 choices given so it is easy just to plug in values:

x h(x)=12x+3 f(x) = x^2 � �� 0 3 0 1 15 1 2 27 4 3 39 9 � Too bad "none of the above" isn't a choice, as none of the given choices work.

Answer by MathTherapy(10549) (Show Source): You can put this solution on YOUR website!

Given the functions h(x) = 12x + 3 and f(x) = x^2, which value of x makes h(x) = f(x)?
a) 0
b) 1
c) 2
d) 3

Set h(x) = f(x), which gives:

This trinomial CANNOT be factored so values for x will be IRRATIONAL and as the choices are RATIONAL, none of the given answers will work.
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