Question

1.solve the system of equations

Answer 1

Problem #1. c. (-1/2,-5/2),(2,5) 

#3 x^2 -18x +81 = 19+81      (18/2)^2
     (x-9)^2 = 100
     x-9 = + or - square root of 100
x= 9 + or - 10
x= 19 and -1

Answer 2

1.(-1/2,-5/2),(2,5)
2.0
3.-1,19
4.-9,9
5.exponential
6.a
7.d
8.c
9.b
10.y=-2x^2+4 is just 4 units up from y=-2x^2