# algebra

posted by .

Can someone tell me if I did this the right way? It seemed easy but it makes me worried that I did it wrong.

h is not equal to 0
f(x)=7x-9
f(x+h)-f(x)/h=
7(x+h)-9-(7x-9)/h=
7x+7h-9-7x+9/h=
7h/h=
7

• algebra -

It is correct. I assume you are supposed to be doing limits, but in this case limitof h/h as h approaches zero is 1.

• algebra -

Thank-you.

## Similar Questions

1. ### Geometry

How can I tell if a triangle is a 30, 60 90 triangle or a 45 45 90?
2. ### Algebra

Here is the problem: Given f(x)=-x^3+3x^2-2x+6, find f(-1), f(0), and f(-1) I believe the way you solve this is replace the value of f into the equation for x right?
3. ### isosceles triangle

An isosceles triangle is a triangle that has two equal sides. Find AB, BC and AC. Determine if the triangle is isoseles or not based on the lengths of the three sides. can someone show me how to solve?
4. ### Algebra

Can someone tell me what I am doing wrong?
5. ### maths

i need to come up with 3 examples of an equal chance of something happening. these are the examples i have thought of but don`t know if they are right. 1/flipping a coin 2/coloured counters out of a bag 3/rolling a dice. please could …
6. ### Organic chemistry

I know that sulfuric acid acts as a catalyst and removes water to help shift the equilibrium to form more productin an esterification. Can someone tell me if it is consumed?
7. ### Organic chemistry

I know that sulfuric acid acts as a catalyst and removes water to help shift the equilibrium to form more productin an esterification. Can someone tell me if it is consumed?
8. ### College English Check

I was helping someone do a run on maze assignment and I just want these questions checked. The instructions said Complete the maze by following the correct sentences. These ones are the one's that I think weren't run on sentences. …
9. ### HISTORY

Which of the following phrases does NOT appear in the Declaration of Independence?
10. ### Chem

Use a chemical equation to help explain why the pH of an aqueous solution changes after HCl solution has been added This is what I got HCL + H2O = H30+ plus CL- Hope that makes since (those are a positive and negative signs at the …

More Similar Questions