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D={1,0,-4,-7}

R={-7,5,-4,1}

Domain: { -7, -4, 0, 1 }

Range: { -7, -4, 1, 5 }

Step-by-step explanation:

Note: when writing the domain and range you must write them in order from least to greatest

Coordinates are written as (x,y)

Domain = set of x values

x values of coordinates given in the relation: 1 , 0 , -4 and -7

Rearrange in order from least to greatest

The domain would be

{ -7, -4, 0, 1 }

The range is the y values

The y values of the coordinates of the relation are -7, 5,-4 and 1

Rearrange in order from least to greatest

The range would be

{ -7, -4, 1, 5 }

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2

the first option is the answer.