Find a domain and range of each function

a. D={o,1,2}

R={1,1,6}

b. D= {-3,-1,0,2}

R={7,9,7,6}

I'm not sure with b.

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is

he has now walked a total of what?

if i know what this is maybe i can

step-by-step explanation: