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7. Write an equation in slope-intercept form that passes through (-3,-3) and (-1, 3).

User Melodius
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2 Answers

3 votes
The correct answer is y = 3x + 6
User Fernando Andrade
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3 votes

Answer:


y=3x+6

Explanation:

In order to create an equation in slope-intercept form, we need to first find the slope of the line. In order to do this, we use the equation:


(y2-y1)/(x2-x1) =m

Plug your two coordinates into this equation:


((3--3))/((-1--3)) = (6)/(2) = 3

Now, you can add the slope to the slope-intercept formula. We still need to find b, though.


y=3x+b

Choose one coordinate you were given and plug in x and y.


3=3(-1)+b\\3=-3+b\\6=b

Hence, your equation is:


y=3x+6

User Zirinisp
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