# Math

posted by .

1. Write the equation of a line in slope-intercept form that has a slope of -1/4 and passes through the point (8, -1).Do not use any spaces. Slope should be a reduced improper fraction.
2.Write the equation of a line in slope-intercept form that passes through the points ( -2, 5) and (-2, 11). Do not use any spaces. Slope should be a reduced improper fraction.

• Math -

1. You know the slope is -1/4, so the equation must be
y = (-1/4)x + b
but the point (8,-1) lies on it, so
-1 = (-1/4)(8) + b
-1 = -2 + b
1 = b

y =(-1/4)x + 1

2. the slope is (11-5)/(-2+2) = 7/0
ahhh, the slope is undefined, so it must be a vertical line, and without any more work we can see the equation is
x = -2

## Similar Questions

in questions 1 and 2, write an equation of the line in slope-intercept form. 1. the slope is -4/3; the y-intercept is -2. 2. the slope is 0; the y-intercept is -5. my answers: 1.y=-4/3-2 2. y=-5 ______________________ write an equation …
2. ### math

I have a few question so I will number them off. Please answer them for me I have a test tommorow and I am sure this can help other people too. 1.How do you make an equation that passes through a y-intercept and a certain point in …
3. ### math

i have more than one question so if u no any of the answers please tell me 1.) write the point-slope form of the equation of the line with slope -2 passing through the point ( -5, -9). 2.) write the point-slope form of an equation …
4. ### Math

Write the equation of a line in slope intercept form that is parallel to the line y= 1/3x+ 5 and passes through (-9, 5). Do not use any spaces. Slope should be a reduced improper fraction.
5. ### Geometry

Write an equation of a line in slope intercept form that is parallel to y = 3x+6 and passes through the point (-10, 2.5). Do not use spaces and enter fractions as improper reduced fractions when needed.
6. ### Algebra2

Write an equation for the line in point/slope form and slope/intercept form that has the given condition. Help?
7. ### 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 through …
8. ### 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 and …
9. ### geometry

I would love for someone to check my work on the seven problems that I did. I would be eternally grateful. I am going to list my problems and answers. Even if you only want to check one of them, that would be great. 1. Write an equation …
10. ### Math

1. Use point-slope form to write the equation of a line that has a slope of 2/3 and passed through (-3,-1). Write your final equation in slope-intercept form. Is the answer y=2/3+-1 2. Write an equation of the line that passed through …

More Similar Questions