Question

If f[x]=16x-30 and g[x]=14x-6 for which value of x does [f-g][x]=0

Answer 1

[f-g][x] will equal zero when x = 12

Explanation:

First find [f-g][x]:

f(x) - g(x) = 16x - 30 - (14x - 6)

= 2x - 24

Now set this equal to zero and solve the resulting equation for x:

2x - 24 = 0

This yields x = 12; [f-g][x] will equal zero when x = 12