X+y+3z=12
-3x+7y-2z=-35
7x-6y-5z=32

(x, y, z)

(5,-2,3)

Step-by-step explanation:

try plugging those into the equation.

just to make sure I was correct.

maybe - definition of supplementary angles. im not sure. sorry

step-by-step explanation:

the answer is the option b

the range is all real numbers

step-by-step explanation:

we know that

the absolute value parent function is equal to

see the attached figure to better understand the problem

so

a. it is v-shaped > is true

b. the range is all real numbers > is not true

because the range is the > [0,∞)

all real numbers greater than or equal to zero

c. it goes through the origin > is true

d. the domain is all real numbers > is true

step-by-step explanation: