Question

How do you find the vertex and the intercepts for `f(x)=(x+3)^2`?

Answer 1

`y` intercept=(0,3)
`x` intercept and also vertex=(-3,0)

Explanation:

When you have a question like this, it is very easy to find the vertex of the curve. We know that the line has equal roots so the vertex is -3 by making (`x`+3)=0. This also gives you the `x` intercept.

To find the `y` intercept, make `x` equal zero. You get the equation:

`y`=`x`(0)+3 hence `y`=3