126k views
3 votes
Plot three points that solve the equation -x-2y=-10

1 Answer

2 votes

Answer:

See the attachment for a plot

Explanation:

I find it convenient to plot lines using their x- and y-intercepts, when those are integers. To find the intercepts, we can divide the equation by the constant on the right:

x/10 +y/5 = 1

This is "intercept form". The denominator in each term is the corresponding intercept:

the x-intercept is 10, point (10, 0)

the y-intercept is 5, point (0, 5)

We can choose another value of y to find a third solution. Let y=2. Then we have ...

-x -2(2) = -10 . . . . . put 2 for y in the original equation

-x = -6 . . . . . . . . . . add 4

x = 6 . . . . . . . . . . . . multiply by -1

A third point is (6, 2)

Plot three points that solve the equation -x-2y=-10-example-1
User Nathan Marotte
by
7.4k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories