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∠ F ≈ 78°

Step-by-step explanation:

Using the cosine ratio in the right triangle

cosF = = = , then

∠ F = ( ) ≈ 78° ( to the nearest degree )

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: