Question

H(x) = x to the 2nd power + 1 and k(x) = x -2, what’s (h + k)(2)?

Answer 1

The value of (H + K)(2) = 5

Explanation:

Given the functions:

H(x) = x² + 1

K(x) = x - 2

By adding the functions:

∴ (H + K)(x) = (x² + 1) + (x - 2) ⇒ Combine like terms.

∴ (H + K)(x) = x² + x - 1

To find (H + K)(2), substitute with x = 2

∴ (H + K)(2) = 2² + 2 - 1 = 4 + 2 - 1 = 5

∴ (H + K)(2) = 5