Which of these represents the rotation of triangle ABC by 90 degrees counterclockwise about the origin

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Step-by-step explanation:

Required

Which represents a counterclockwise 90 degrees rotation

No enough details to answer this question. However, I will give a general explanation on how questions like this can be solved

Assume one of the vertex of the triangle is (x,y)

When (x,y) is rotated counterclockwise by 90 degrees, the new point is (-y,x)

Take for instance:

A(2,3)

The new point after rotation will be (-3,2)

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:

i think it might be a but you might want a second opinion