F(x)=x²+4x-7 determine the vertex

The vertex of this parabola is

Step-by-step explanation:

One way of finding the x-coordinate of the vertex of a parabola is by using the equation

From the function , we can see that

This means that

So, the x-value of the vertex is -2. Now, we can plug this x-value into the function to find the y-coordinate of the point.

Thus, the vertex of this parabola is

the 3rd option is right

step-by-step explanation:

on a coordinate grid, point a is at (−4.0, −2.4) and point b is at (4.0, −2.4). point b is a reflection of point a across the –axis. input either a lowercase x or i think is the right awnser

step-by-step explanation: