# Algebra

How do I use an x and y-intercept to write an equation in standard form? For example, how do I use the x-intercept of 3 and y-intercept of 6 to write an equation in standard form?

1. 👍 0
2. 👎 0
3. 👁 58
1. The x-intercept of 3 is really the point (3,0) and
the y-intercept of 6 is really the point (0,6)

So you are just given two points,
find the slope, then find the equation of the line in your usual way.

1. 👍 0
2. 👎 0
posted by Reiny
2. Okay, but how can I (if I can) write an equation in standard form (ax + by = c) using the two intercepts?

1. 👍 0
2. 👎 0
3. Ahh, you mean directly?

x/3 + y/6 = 1

(in general: x/(x-intercept) + y/(y-intercept) = 1 )

once you have that, multiply each term by 6, the LCD
2x + y = 6

check if both points lie on it.
for (3,0)
2(3) + 0 = 6 , ok
for (0,6)
0 + 6 = 6 , ok

1. 👍 0
2. 👎 0
posted by Reiny
4. Thank you so much! It is surprising that my school didn't show us that method.

1. 👍 0
2. 👎 0

## Similar Questions

1. ### Quick math help

My math exam is coming up Friday and I need help!! Can you please guide me throgh the processes on the three questions? Thank you so much greatly apreciate it!! Write the standard form of the equation of each line given the slipe

asked by Anonymous on December 17, 2013
2. ### Math

1. Find the slope of the line that passes through the points (-1, 2), (0, 5). 2. Suppose y varies directly with x, and y = 15 and x = 5. Write a direct variation equation that relates x and y. What is the value of y when x = 9? 3.

asked by PicturesDon'tChangeThePeopleInsideOfThemDo on December 13, 2017
3. ### Geometry HOMEWORK HELP ME PLEASE!

Draw the triangle with vertices D(-2,1), U(4,9), and E(10,1) On a Graph. 2. Find DU, UE, AND DE. (Distance) 3. Classify Triangle DUE by its sides. 4. Write the standard form of the equation of each line: DU, UE, and DE.Also, find

asked by Brian on March 20, 2008
4. ### math - pls check!!!

Write an equation in point-slope form for the line that passes through one of the following pairs of points (you may choose the pair you want to work with). Then, use the same set of points to write the equation in standard form

asked by SkatingDJ on January 13, 2015
5. ### Algebra

I know that standard form is Ax+By=C, but I'm not really sure how to do this problem. All help is welcome. Thanks in advance. Write an equation for each line: through (-1,3) and parallel to y=2x+1 I know that the slop will be 2

asked by Faramir on September 25, 2006
6. ### Algebra

Choose 1 set of points from the choices below. Then, solve the problem and post your solution, showing your steps. Write an equation in point-slope form for the line that passes through one of the following pairs of points (you

asked by Anonymous on December 6, 2013
7. ### Algebra

What is 2x=7? Is it a standard form, or slope-intercept form, or not a linear equation? Can you explain what a standard form and a slope-intercept form is PLEASE!? The standard form for a straight line is y=mx+b where m is the

asked by Anita on December 11, 2006
8. ### Algebra 2

Can someone help me with this equation please? The directions are: Write an equation for the line in point/slope form and slope/intercept form that has the given condition. And the problem is: x-intercept = 6 and y-intercept = -8

asked by Maria on November 16, 2015
9. ### Algebra

I have an assignment to write an equation to point-slope form, then to standard form, and then to slope-intercept form. I have used the points (-2,-1) or (1,2), but I used (-2,-1). Now, I have the point-slope form of y + 1= 1(x +

asked by Anonymous on December 6, 2013
10. ### Algebra

I have an assignment that asks me to write an equation in slope-intercept, point-slope, or standard form for the information given and to explain why the chosen form would be best. Below is the information given. 1. passing

asked by Anonymous on January 2, 2014
11. ### algebra

The equation -5x-3y=2 is a linear equation in standard form. From this equation, answer the following:a. Find the y and x-intercepts b. Write this equation in slope-intercept form.

asked by Keonn'a on September 16, 2018

More Similar Questions