Solve the system below
y=x^2-2x-6
y=4x+10

a. (-2,2)
b. (8,42)
c. (-2,,42)
d. no real solution

solve the system below
y=x^2 -4
y= -4

a. (0,-4)
b. (-4,0)
c. (0,-,0)
d. no real solution

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

Select the quadratic that has root x = 8 and x = -5

Which expressions equal 9 when x=4 and y=1/3 a. x2+6y b. 2x + 3y c. y2-21x d. 5 (x/2) -3y e. 3x-9y