Question

If f(x) = `{(x^2 + 3","  x ≤ 2),(5x + 7","  x > 2):},` then find f(0)

Answer 1

f(x) = x² + 3,    x ≤ 2
= 5x + 7,          x > 2
f(0) = 0² + 3
= 3