Question

What is the function equation for the input/output table?

x y
0 0
1.3 3.9
5 15
8 24



y = (3.9) x

y = x + 3

y = 3 x

y = x + 3.9

Answer 1

3

Explanation

Your problem statement tells you

f(x) passes through point (3, negative 1)

g(x) passes through point (3, negative 1)

This tells you the input value that produces the same output value for the two functions is 3, and that output value is -1.