Can someone please help me with this of identifying the domain and range

I'll try my best, but I am a little rusty!

Domain (D) is all possible x values

Range (R)  is all possible y values

I don't know how your teacher taught you how to write the values, but here is how I do it

7. D: { all real numbers}, R: {-3 ≤ y ≤ 2}

8. D { -1 ≤ y } or { -1 ≤ y ≤ ∞ }, R: all real numbers

9. D: {2}. R: all real numbers

10: D: all real numbers, R: {-4}

11. D: {-2 ≤ x < 5}, R:  {-2 ≤ y ≤ 1}

12: D: {-4 ≤ x ≤ 5}, R: {-3 ≤ y ≤ 5}

13 D: { -∞ ≤ y < 2 }, R: {-∞ ≤ y < 0}

14: D: {-2 ≤ x ≤ ∞}, R: {-4 ≤ y ≤ ∞}

Hope I helped! Message me if you have any questions or concerns! :)

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area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2

idk

step-by-step explanation:

use that smart brain