a)7x²+11
y=a(x-p)^2+q
p=-b/2a
q=-delta/4a
p=0/14=0
delta=0-308=-308
q=308/14=22
y=7(x-0)^2+22
b)x²+4x
delta=16-0=16
p=-4/2=-2
q=-16/4=-4
y=(x+2)^2-4
c)x²-8x+16
delta=64-64=0
p=8/2=4
q=0/4=0
y=(x-4)^2
d)2x²+4x+2
delta=16-16=0
p=-4/4=-1
q=0/8=0
y=2(x+1)^2
e)-x²-2x+6
delta=4+24=28
p=2/-2=-1
q=-28/-4=7
y=-(x+1)^2+7
g)-5x²+3x-3,15
delta=9-63=-54
p=-3/-10=3/10
q=54/-20=-54/20
y=-5(x-3/10)^2-54/20
k)3(x+4)²-4(x-5)-6
3(x^2+8x+16)-4x+20-6=3x^2+24x+48-4x+14=3x^2+20x+62
delta=400-744=-344
p=-20/6=10/3
q=344/12=-86/3
y=3(x-10/3)^2-86/3
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a)7x²+11
y=a(x-p)^2+q
p=-b/2a
q=-delta/4a
p=0/14=0
delta=0-308=-308
q=308/14=22
y=7(x-0)^2+22
b)x²+4x
delta=16-0=16
p=-4/2=-2
q=-16/4=-4
y=(x+2)^2-4
c)x²-8x+16
delta=64-64=0
p=8/2=4
q=0/4=0
y=(x-4)^2
d)2x²+4x+2
delta=16-16=0
p=-4/4=-1
q=0/8=0
y=2(x+1)^2
e)-x²-2x+6
delta=4+24=28
p=2/-2=-1
q=-28/-4=7
y=-(x+1)^2+7
g)-5x²+3x-3,15
delta=9-63=-54
p=-3/-10=3/10
q=54/-20=-54/20
y=-5(x-3/10)^2-54/20
k)3(x+4)²-4(x-5)-6
3(x^2+8x+16)-4x+20-6=3x^2+24x+48-4x+14=3x^2+20x+62
delta=400-744=-344
p=-20/6=10/3
q=344/12=-86/3
y=3(x-10/3)^2-86/3