Sorry if i posted this in the wrong section.

In the attachment, i posted a photo of what i need help with.

As you will see (if the photo actually works..) the first part says y=ax².

I had to substitute numbers in fora, which werea=-2, -1, -1/2, 1/2, 2, 3.

Which i did using a computerised calculator (fx9860emulator) and graphed it. The graph attachment is also there...

anyway, my problem is, it says "Complete a similar style of investigation for the quadratic functions below:

- y=x² + c

- y=x² + bx

- y=(x-a)(x-B)

- y=(x-a)²

- y=(x-h)² +k

- y=ax² + bx + c

Hint: keep 2 of the values (a,b or c) constant and look at the effect of changing the other.

So, am i mean't to substitue random numbers into the letters c, bx and such? or do i use the same formula thataused?