Geometry help please!

first answer is angles forming a linear pair sum to 180

second answer definition of perpendicular lines

third answer is substitution

I hope it is correct and helped you

the discriminant is 64 + 4*1*12 = 112

this is prime.

step-by-step explanation:

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb