Write a 2-digit number that has twice as big ten digit as it has unit digit.

21, 42, 63, 84

Step-by-step explanation:

21         2/2=1

42         4/2=2

63         6/2=3

84         8/2=4

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 is g(1)=-1.

hope that i can