Algebra practice question

Answer: 5

The slope is (7 − 1)/(2 + 4) = 1, so the line is y = x + 5. Then 2k = k + 5 gives k = 5.

Common wrong answers

If you answered 1

1 is the slope.

If you answered 10

10 is 2k, the y-coordinate.

If you answered -5

−5 has the sign wrong.

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