Question

(-1, 2), (0, 1), (1, 2), (2, 5), (3, 10)} Write the rule for f(x).

Answer 1

f(x) = x² + 1 for x∈{-1, 0, 1, 2, 3}

Explanation:

(-1, 2)

(-1)² + 1 = 1 + 1 = 2

(0, 1)

0² + 1 = 0 + 1 = 1

(1, 2)

1² + 1 = 1 + 1 = 2

(2, 5)

2² + 1 = 4 + 1 = 5

(3, 10)

3² + 1 = 9 + 1 = 10

Therefore

f(x) = x² + 1 for x∈{-1, 0, 1, 2, 3}