area
variables
inequalities
100

What is the area of a rectangle that is 12 feet wide and 10 feet long?

120 ft squared


100

x + x + x = 12

x = 4

100

x > -3

  -7 -6 -5 -4 -3 -2 -1  0  1  2  3  4  5  6  7
<---------------------------------------------->

  -7 -6 -5 -4 -3 -2 -1  0  1  2  3  4  5  6  7
<---------------------------------------------->

200

What is the area of a triangle that has a base of 20 cm and a height of 8 cm?

80 cm squared

200

x + x - 7 = 11

x = 9

200

x  ≤ 2

   -5 -4 -3 -2 -1  0  1  2  3  4  5  
<------------------------------------->

   -5 -4 -3 -2 -1  0  1  2  3  4  5  
<------------------------------------->

300

What is the area of a rectangle that is 15 feet wide and 7 feet long?

105 feet squared

300

5x - 8 = 27

x = 7

300

x - 3 < 1

   -5 -4 -3 -2 -1  0  1  2  3  4  5  
<------------------------------------->

   -5 -4 -3 -2 -1  0  1  2  3  4  5  
<------------------------------------->

400

What is the area of a triangle that has a base of 8.4 m and a eight of 2 m?

8.4 m squared

400

x/6 + 10 = 22

x = 72

400

x + 10 ≥ 5

   -5 -4 -3 -2 -1  0  1  2  3  4  5  
<------------------------------------->

  -5 -4 -3 -2 -1  0  1  2  3  4  5  
<------------------------------------->

500

What is the area of a square with sides that measure 12 cm?

144 square cm

500

If x =3, what is 

5x + 12 - x?

24

500

x + x < 8

   -5 -4 -3 -2 -1  0  1  2  3  4  5  
<------------------------------------->

   -5 -4 -3 -2 -1  0  1  2  3  4  5  
<------------------------------------->

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