## squishy1193 Group Title find the difference quotient of f that is find f(x+h)-f(x)/h for f(x) =x^2-2x+4 one year ago one year ago

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1. febylailani Group Title

i think, it's not f(x+h)=f(x)/h but, f(x+h)-f(x)/h

2. squishy1193 Group Title

yes im sorry i wrote that wrong it is f(x+h)-f(x)/h

3. NoelGreco Group Title

What don't you get?

4. campbell_st Group Title

ok will substitute x + h for x thats what f(x + h) is asking you to do $\frac{(x + h)^2 -2(x +h) + 4 - (x^2 -2x + 4)}{h}$ the next step is to expand and then collect like terms... this will leave the numerator with terms involving h which will be able to cancel with the denominator