Zapisz wzór funkcji kwadratowej w postaci kanonicznej, postępując jak w poniższym przykładzie.
a)
b)
c)
d)
a) y=3x²-3x-1/4
y=3(x²-x)-1/4
y=3[(x²-2*1/2x+(-1/2)²)-(-1/2)²]-1/4
y=3(x-1/2)²-1
-----------------
b) y=-2x²+4x+5
y=-2(x²-2x)+5
y=-2[(x²-2x+(-1)²)-1]+5
y=-2(x-1)²+7
c) y=4x²-12x+5
y=4(x²-3x)+5
y=4[(x²-2*3/2*x+(-3/2)²)-(3/2)²]+5
y=4(x-3/2)²-4
d) y=2x²+x+1
y=2(x²+1/2 x)+1
y=2[(x²+2*1/4 x+ (1/4)²)-(1/4)²]+1
y=2(x+1/4)²+7/8
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a) y=3x²-3x-1/4
y=3(x²-x)-1/4
y=3[(x²-2*1/2x+(-1/2)²)-(-1/2)²]-1/4
y=3(x-1/2)²-1
-----------------
b) y=-2x²+4x+5
y=-2(x²-2x)+5
y=-2[(x²-2x+(-1)²)-1]+5
y=-2(x-1)²+7
-----------------
c) y=4x²-12x+5
y=4(x²-3x)+5
y=4[(x²-2*3/2*x+(-3/2)²)-(3/2)²]+5
y=4(x-3/2)²-4
-----------------
d) y=2x²+x+1
y=2(x²+1/2 x)+1
y=2[(x²+2*1/4 x+ (1/4)²)-(1/4)²]+1
y=2(x+1/4)²+7/8