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1.

The ordered pair (2,2)(2,2) satisfies which of the following equations:

Select one:

a. 2x+2y=112x+2y=11

b. 2x+2y=42x+2y=4

c. 2x−4y=−42x−4y=−4

d. 2x+y=5

 

 

2.

The ordered pair (6,4)(6,4) satisfies which of the following equations:

Select one:

a. 2x+3y=202x+3y=20

b. 2x−2y=42x−2y=4

c. 2x−3y=−22x−3y=−2

d. 2x+y=11

 Feb 20, 2019
 #1
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1.   Put  x= 2   and y = 2 in to each of the equations to see if they are true

     C is the only one     2x-4y = -4      2(2) - 4(2) = 4-8 = -4   TRUE

 

2  Same thing here   put   x =6   and y = 4   into the equations to see which one is true

      2x+3y = 20  ?

      2(6) + 3(4) = 20?

       12 + 12 = 20?

         24 = 20?                 Nope...it is not 'a'......try the others to find the one that fits.....

 Feb 20, 2019

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