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Finding Intercepts

Directions:  Using the digits 1 through 9, at most one time each, fill in the boxes to create a linear equation that has an x- and y-intercept with integer values.

Hint

Hint

When finding an x – intercept, how does the coefficient of the x-variable operate with the constant value?

When finding a y-intercept, how does the coefficient of the y-variable operate with the constant value?

Answer

Answer

There are many possible solutions:

Example:

2x + 3y =6

1x + 4y = 8

3x + y =9

Source:  Jeffrey Mashbitz

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2 comments

  1. Lol. I thought the instructions were to use *all* the digits, 1–9. I recalled that 123456789 is divisible by 3, so with a little thought realized this would work:

    3x + 6y = 1457892

    Maybe a challenge question?

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