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# Alegebra 2 - How do you do this? Slope.?

Topic: How to write an equation in point slope form
June 26, 2019 / By Ira
Question: Write an equation of the line that contains the given point and has the given slope. Write the equation in slope intercept form (1, -1), slope = 2 What is the answer.. how do you do this .. i thought it was y = 2x - 1

## Best Answers: Alegebra 2 - How do you do this? Slope.?

Ewen | 8 days ago
to find slope use this equation: y2-y1 m= x2-x1 m=slope (On the equation pretend there is y2-y1 OVER x2-x1 In this problem pretend the other y2 and x2 are 0. If you are finding direct variation then use k=y/x or y=kx k= constant variable Hope this helps! plz give me best answer! :)
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We found more questions related to the topic: How to write an equation in point slope form

Originally Answered: Slope and Slope Intercepts into Standard Form?
You mean: slope = 3/4 ... y = mx + b or y = (3/4) x + b ← plug in slope or 3 = (3/4)(-2) + b ← plug in point or 3 + 3/2 = b or b = 9/2 ... y = (3/4)x + (9/2) or 4y = 3x + 18 or 3x - 4y = - 18 ← ans d.

Cowal
Hi, It's y = 2x - 3. To get this you can start with the slope-intercept form, y = mx + b. Substitute your point for the x and y. Put your slope in place of m and you can solve to find "b". y = mx + b -1 = 2(1) + b -1 = 2 + b -3 = b Now that you know the slope is 2 and the y-intercept is -3, so the equation in slope-intercept form is y = 2x - 3. <== answer A second way to get the answer is to fill the data into the point-slope form, y = y1 = m(x - x1). Substituting (1,-1) for x1 and y1 and putting 2 for the slope gives y - (-1) = 2(x - 1). y - (-1) = 2(x - 1) y + 1 = 2x - 2 y = 2x - 3 <== answer So there are 2 different ways to get to the same answer. I hope that helps!! :-)
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Ashley
OK - slope intercept form is y = mx + b where m is the slope and b is the y-intercept so we have y = 2x + b. We have a point, so place that in the equation: -1 = 2(1) + b -1 = 2 + b -3 = b ; so the y-intercept is -3. The equation of the line: y = 2x - 3. Hope that helps.
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Valorie
if the slope is 2 and it passes through 1,-1, -1 wouldn't be your y intercept because the x value would have to be 0. -1= 2(1)+c c= -3 the equation is: y= 2x -3
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Selah
(1, -1), slope = 2 x=1, y=-1, m=2 now use y=mx+b to find the y intercept -1=2*1+b b=-3 answer is y = 2x-3
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Oda
I ALL SO HAVE ALGEBRA 2!!!!!!!!HERE IS UR ANSWER (y = 2x - 3) WE JUST DID THAT 1 WEEK A GO IT IS A LITTLE HARD FOR ME TO!!!!!!!
👍 22 | 👎 -12