Question

If f(x) = x + 4, find f(-7).

Answer 1

f(-7) = -7 + 4
= -3

Answer 2

f(x)=x+4
f(-7)=-7+4
= -3

Answer 3

Which relation does not represent a function?

Group A (-7, 3), (-3, 1), (1, -4), (5, -6)

Group B (-4, 2), (1, 5), (-4, 0), (5, 6)

Group C (2, 0), (4, 8), (6, 5), (10, 5)

Group D: (-3, 6), (-1, 1), (0, 4), (3, 7)