Question 102451
A.
-5p+40=-p^2+30p-8
p^2-35p+48=0
*[invoke solve_quadratic_equation 1, -35, 48]
B.
(30+x)(40+x)=1800
1200+70x+x^2=1800
x^2+70x-600=0
*[invoke solve_quadratic_equation 1, 70, -600]
C.
Yes.
D.
y = –x2 + 1
axis of symetry=0
Ed
{{{graph(500,500,-10,10,-10,10,-x^2+1)}}}