Name a pair if complementary angles in the figure

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b

For the feasibility region shown below find the maximum value of the function p=3x+2y