Register
Find f(8) iff(x) = x² + 2x - 1
156k views
4 votes
Find f(8) iff(x) = x² + 2x - 1

User Jpkroehling
by
7.7k points

1 Answer

5 votes

Substitute 8 for x in the equation to ontain the value of f(8).


\begin{gathered} f(8)=(8)^2+2\cdot8-1 \\ =64+16-1 \\ =79 \end{gathered}

So answer is f(8)=79.

User Jonspaceharper
by
8.3k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

8.8m questions

11.4m answers

Other Questions

What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
Link Copied!