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Aleonysh [2.5K]
3 years ago
14

Which ordered pair does NOT lie on the graph of h(x)=-2x + 7

Mathematics
2 answers:
Rus_ich [418]3 years ago
8 0

Answer:

A

Step-by-step explanation:

To determine if the ordered pairs lie on the graph, substitute the x- coordinate of the point into the equation and if the value agrees with the y- coordinate of the point then it lies on the graph

A

x = - 2 : y = -2(- 2) + 7 = 4 + 7 = 11 ≠ 3 ← (-2,3) not on graph

B

x = - 1 : y = - 2(- 1) + 7 = 2 + 7 = 9 ← (- 1, 9) lies on graph

C

x = 3 : y = -2(3) + 7 = - 6 + 7 = 1 ← (3, 1) lies on graph

D

x = 4 : y = - 2(4) + 7 = - 8 + 7 = - 1 ← (4, - 1) lies on graph

qaws [65]3 years ago
4 0

Answer:

Choice A is the answer.

Step-by-step explanation:

We have given a function.

h(x) = -2x+7

We have to choose the ordered pair which doesn't lie on the graph of given function.

A. (-2,3)

Putting x = -2 in given function, we have

h(x) = -2(-2)+7

h(x) = 4+7

h(x) = 11  (not true)

B. (-1,9)

putting x  = -1 in given function, we have

h(x)  =  -2(-1)+7

h(x)  =  2+7  =  9 (true)

C. (3,1)

Putting x  =   3 in given function, we have

h(x)  =   -2(3)+7

h(x)  =   -6+7

h(x)  =   1      (true)

D. (4, -1)

Putting x  = 4 in given function, we have

h(x)  =   -2(4)+7

h(x)  =  -8+7

h(x)  =  -1       (true)

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