Question

What is the equation for the axis of symmetry in the function y = -2x2 + 5x - 4?
I honestly don't understand this question at all..

Answer 1

the graph looks like this (on of the two)

they ask you to find ........

Answer 2

this line

Answer 3

the equation is of the form \(x=a\) and you can see that it passes exactly through the top of the parabola. (it is a parabola)

all you have to do is find the x-coordinate of the parabola "\(y = -2x^2 + 5x - 4\)" .

Answer 4

That didn't help at all..

Answer 5

use the formula

x = -b/(2a)

in this case

a = -2
b = 5

Answer 6

that will give you the equation for the axis of symmetry

Answer 7

Ohh.. thanks :)