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10 votes
10 votes
How do I do this problem?

How do I do this problem?-example-1
User Marijne
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2.8k points

2 Answers

19 votes
19 votes

Answer:

Explanation:

I would start from the beginning and find the slope myself, just so I know what's going on (as opposed to being dropped in the middle of the problem). The slope formula is:


m=(y_2-y_1)/(x_2-x_1) and for us:


m=(5-3)/(4-3)=2 so the slope is indeed 2. Now we need to write the equation in slope-intercept form. I find it easier to first write the equation in point-slope form and then solve it for y. Point-slope form is


y-y_1=m(x-x_1) where m is the slope (2) and x1 and y 1 are from one of the coordinates (whichever one you want; as long as you do the math correctly, you will NOT get an incorrect answer. In other words, you can't pick the "wrong" point to use to write the equation.) I'm going to use (3, 3):

y - 3 = 2(x - 3) and

y - 3 = 2x - 6 and

y = 2x - 6 + 3 so

y = 2x - 3 and that's your equation. Of course, you will enter a (-3) in that box with the ? in it.

User Webjames
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2.9k points
12 votes
12 votes

Explanation:

here is the answer to your question

How do I do this problem?-example-1
User Vincenzooo
by
2.6k points