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The graph of the equation y - 1 = -2(x - 2) contains which set(s) of ordered pairs? Select all that apply.
A. (0.-2) and (1, 3)
B. (0,5) and (-2,9)
C. (-1.7) and (2.1)
D. (3.-1) and (2-1)​

Respuesta :

texaschic101

Answer:

B and C

Step-by-step explanation:

y - 1 = -2(x - 2)

y - 1 = -2x + 4

y = -2x + 4 + 1

y = -2x + 5

now we sub

A. y = -2x + 5...(0,-2)

   -2 = -2(0) + 5

   -2 = 5...nope, not this one, no need to go further on this one

B. y = -2x + 5 ...(0,5)             y = -2x + 5...(-2,9)

   5 = -2(0) + 5                     9 = -2(-2) + 5

   5 = 5.....yep                      9 = 4 + 5

                                             9 = 9...yep

    so B is a correct answer

C. y = -2x + 5....(-1,7)              y = -2x + 5...(2,1)

   7 = -2(-1) + 5                       1 = -2(2) + 5

   7 = 2 + 5                             1 = -4 + 5

   7 = 7...yep                           1 = 1...yep

   so C is a correct answer

D. y = -2x + 5....(3,-1)               y = -2x + 5...(2,-1)

   -1 = -2(3) + 5                        -1 = -2(2) + 5

  -1 = -6 + 5                             -1 = -4 + 5

  -1 = -1...yep                           -1 = 1......nope

so ur answers are : B and C

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