How do you evaluate the function f(x)=x^2+1f(x)=x2+1 for f(-3)?

1 Answer
smendyka
Jul 30, 2017

See a solution process below

Explanation:

To evaluate the function for f(-3)f(−3) we need to substitute color(red)(-3)−3 for every occurrence of color(red)(x)x and then evaluate the results:

f(color(red)(x)) = color(red)(x)^2 + 1f(x)=x2+1 becomes:

f(color(red)(-3)) = color(red)(-3)^2 + 1f(−3)=−32+1

f(color(red)(-3)) = color(red)(9) + 1f(−3)=9+1

f(color(red)(-3)) = 10f(−3)=10

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