Question

find the x-intercepts of the parabola with vertex (1,-108) and y-intercept(0,-105). PLEASE write anwser in the form of (x1,y1)(x2,y2) if it is necessary you can round to the nearest hundreth. <3 PLEASE HELP ME URGENT !

Answer 1

ok lets do it

Answer 2

ok :) yay !

Answer 3

\[y=a(x-1)^2-108\]
\[-105=a(0-1)^2-108\]
\[-105=a-108\]
\[-105+108=a\]
\[a=3\]
\[y=3(x-1)^2-108\]

Answer 4

now set
\[y=0\] solve for x

Answer 5

\[0=3(x-1)^2-108\]
\[108=3(x-1)^2\]
\[36=(x-1)^2\]
\[x-1=\pm\sqrt{36}\]
\[x-1=\pm 6\]
\[x-1=6\]
\[x=7\]
\[x-1=-6\]
\[x=-5\]

Answer 6

two solutions are
\[(-5,0)\] and
\[(7,0)\]

Answer 7

ohkay so then after that we ...

Answer 8

thanks <3

Answer 9

yw