11th grade algebra 2
posted by Angel on .
(17) write each function in vertex form (810) write each funtion in standard form?
1) Y=x^2+3x10
2) Y=x^29x
3) Y=X^2+x
4) Y=x^2+5x+4
5) Y=4x^2+8x3
6) Y=(3/4)x^2+9x
7) Y=2x^2+2x+1
8) Y=(x3)^2+1
9) Y=2(x1)^23
10)Y=3(x+4)^2+1

1. Y = x^2+3x10.
Y = a(xh)^2 + k.
h = Xv = b/2a = 3/2.
k = (3/2)^2 + 3(3/2)  10 = 49/4.
V(h,k).
V(3/2,49/4).
Y = 1(X+3/2)^2  49/4.
2. Y = x^2  9x.
Y = a(Xh)^2 + k.
h = Xv = b/2a = 9/2.
k = (9/2)^2 9(9/2) = 81/4.
V(h,k) = (9/2,81/4).
Y = 1(X9/2)^2  81/4.
8. Y = (x3)^2 + 1.
Y = x^2 _ 6x + 9 + 1.
Y = X^2  6x + 10.
The remaining problems are similar to
those I've solved. 
five less than a number is at least28