Which is a solution of the equation?

Mathematics

1 answer:

dem82 [27]3 years ago

3 0

Answer:

Step-by-step explanation:

to determine which point is a solution, substitute the x-coordinate of the point into the equation and if the value is equal to the y-coordinate of the point then it is a solution.

(a) (- 1, 3)

y = (- 2 × - 1) + 4 = 2 + 4 = 6 ≠ 3 ⇒(-1, 3) is not a solution

(b) (- 2, 8)

y = (- 2 × - 2) + 4 = 4 + 4 = 8 ⇒ (- 2, 8) is a solution

y = 0 + 4 = 4 ≠ 1 ⇒ (0, 1) is not a solution

(d) (4, 2)

y = (2 × 4) + 4 = 8 + 4 = 12 ≠ 2 ⇒ (4, 2) is not a solution

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