3653 Shares

Topic: **How to write an equation in point slope form****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

June 26, 2019 / By Ira

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! :)

👍 144 | 👎 8

Did you like the answer? We found more questions related to the topic: **How to write an equation in point slope 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.

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!! :-)

👍 50 | 👎 4

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.

👍 43 | 👎 0

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

👍 36 | 👎 -4

(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

👍 29 | 👎 -8

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

BAscially slope intercept form is y=mx+b So change it into that format 8y=-5x+16 you have to isolate y so divide everything by 8 gives y=-5/8x+2 THe coefficient of x is the slope, or in this case-5/8 while the y intercept is 2 hopefully this helped.

If you have your own answer to the question how to write an equation in point slope form, then you can write your own version, using the form below for an extended answer.