# Math Help - Difference Quotient - College Algreba

1. ## Difference Quotient - College Algreba

Find and simplify the difference quotient of f,
f(x + h) - f(x)
h

and h can not equal 0, for the function.

f(x) =
1
7x

2. Originally Posted by Randomabcdefghi
Find and simplify the difference quotient of f,
f(x + h) - f(x)
h

and h can not equal 0, for the function.

f(x) =
1
7x
for $f(x) = \frac 1{7x}$ we have $f(x + h) = \frac 1{7(x + h)}$

now plug these into the formula and simplify. Hint: multiply by the LCD of the fractions in the numerator over itself. that is, multiply by $\frac {7x(x + h)}{7x(x + h)}$