Question

5. Identify the vertex of the quadratic function given by the equation f(x)=x²+8x-14

Answer 1

The answer is (-4,-30).

The vertex of a quadratic equation can be found using the formula b/-2a. A quadratic equation can be rewritten as a
`x^(2)`+ bx+c. By rewriting the formula this way, you will be able to identify what the variables a and b are in the original equation. (a is 1 and b is 8).

Plug in the numbers into the formula
`(b)/(-2a)`, which will give you the x coordinate of the vertex (-4).

Next plug in the -4 into the original equation x²+8x-14 to get the y coordinate (-30).