SOLUTION: Please answer this question: For what value of y does the point (-3,y) lie on the line y = -3x + 4?

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Question 84538: Please answer this question:
For what value of y does the point (-3,y) lie on the line y = -3x + 4?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
The point (-3,y) means that we have an x value that equals -3 and an unknown y value. So to find the unknown y value, plug in x=-3

y+=+-3%28-3%29+%2B+4 plug in x=-3

y+=+9+%2B+4 Multiply

y+=+13 Add

So the y value equals 13. In other words, the point (-3,13) lies on the line y+=+-3x+%2B+4

Here's a visual verification:

graph of y+=+-3x+%2B+4 with the point (-3,13)