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
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)
