Question

If f(x) = x2 – 2x + 3, then find
f(-3).

Answer 1

Answer:

f(-3) = 18

Step-by-step explanation:

We need just substitute x with (-3) and calculate it.

f(-3) = (-3)² -2*(-3) + 3 = 9 + 6 +3 = 18

Answer 2

The value of f(-3) according to the function, f(x) = x2 – 2x + 3 is; f(-3) = 18.

According to the question;

• We are required to evaluate f(-3) provided that f(x) = x2 – 2x + 3.

To evaluate the value of f(-3);

We must substitute -3 as the value of x into the expression for the function, f(x) as follows;

• f(-3) = (-3)² -2(-3) + 3

• f(-3) = 9 + 6 + 3

• f(-3) = 18.

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