Question

If f(x) = `{(x^2 + 3","  x ≤ 2),(5x + 7","  x > 2):},` then find f(2)

Answer 1

f(x) = x² + 3,      x ≤ 2
= 5x + 7,            x > 2
f(2) = 2² + 3
= 4 + 3
= 7