A because inverse is the opposite order so instead of -3/1 or 5/1 it becomes 1/-3 and 1/5
This gives you three simultaneous equations:
6 = a + c
7 = 4a + c
1 = c
<u>c = 1
</u><u /><u />
If c =1,
6 = a + 1
<u>a = 5
</u><u /><u />
This doesn't work in the second equation, so the quadratic that goes through these points is not in the form y = ax^2 + bx + c
Was there supposed to be a b in the equation?
She should have
nickles: 6 . =30
dimes: 30 . = 300
=330 . or $3.30
