Algebra practice question

Answer: 7

With slope m, the y-intercept is 3 − 2m. Setting m = 3 − 2m gives m = 1, so (k − 3)/4 = 1 and k = 7.

Common wrong answers

If you answered 1

1 is the slope, not k.

If you answered 3

3 would give slope 0 and y-intercept 3, which are not equal.

If you answered 11

11 gives slope 2 but y-intercept −1.

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