SOLUTION: is (3,4) a solution of y= -x + 7?

SOLUTION: is (3,4) a solution of y= -x + 7?

Algebra.Com

Question 106862: is (3,4) a solution of y= -x + 7?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given equation

Let's test the first solution (3,4):

Plug in and

Simplify. Since the two sides of the equation are equal, this means (3,4) is a solution to

Now let's graph the equation and plot the point (3,4)

Here we can see that the point (3,4) lies on the line. So this shows that (3,4) is a solution to which verifies our answer.
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