Answer:
y=7 so all of the y's are 7 but the last one is 4
First year to find how much one pencil cost cost then multiply A number
Vertex form:
y-k=a(x-h)^2
h=-2,k=-20,y=-12 when x=0
thus;
-12+20=a(0+2)^2
8=4a
a=2
Equation:
y+20=2(x+2)^2
y+20=2(x^2+4x+4)
f(x)=2(x^2+4x+4)-20
f(x)=2x^2+8x+8-20
f(x)=2x^2+8x-20
The ratio 4 to 7. would be 12 and 21
Hey z shs d 2 , e dndbdjdbdud us ske ux he 4 670.2
