mdaniella522
02.07.2019 •
Mathematics
Find the missing coefficients y=ax^2-10x+c vertex : (-5,20)
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Ответ:
so
given
x value of vertex is -5
and
multiply both sides by a
5=-5a
divvide both sides by -5
-1=a
a=-1
comlete the square
remember if we do
(h,k) is the vertex
I know, we can subsitute the known values of te vertex
-5 for h and 20 for k then expand
a=-1
c=-5
Ответ:
B
Step-by-step explanation:
The correct answer is B