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Y =3x-7 what is the ordered pair

1 Answer

7 votes

Answer:

I would need some more information to determine this. See explanation.

Explanation:

This equation is written in slope-intercept form, which indicates a line on a graph where the slope of the line is 3, and the y-intercept is -7. Knowing this, you could graph a line where the line crosses the y-axis at -7 (0, -7), and then use the slope to plot other points (such as 1,-4).

Another way to do this is to pick any number for x, and then solve for y. So if you are looking for any ordered pair on this line, pick a number:

Let's do x=5.

y = 3(5)-7

y = 15 - 7

y = 8. This means the ordered pair of (5,8) would satisfy the equation.

One more example, using the value of x=8

y=3(8) - 7

y = 24 - 7

y = 17

This means the ordered pair of (8, 17) would also satisfy the equation.

Make sense?

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