# algebra

posted by .

Which choice could be the equation of a line perpendicular to the line represented by this equation?

y = 5

for this question, i put this:
y = -1/5x

but, it says i am wrong. how is that? 5 is 5/1, and so the negative reciprocal of 5/1 would be -1/5, right?

• algebra -

You are correct. Maybe they anticipated
(-1/5)*x, or -x/5, or -0.2x, or maybe they are just wrong.

• algebra -

y = 5 or y = 0x + 5
is a horizontal line with slope of 0

Thus a perpendicular line would be a vertical line, which has an undefined slope.

Any vertical line has the form x = k , where k is a constant

## Similar Questions

1. ### Math 10

1 more question.... how would I make this equation perpendicular?
2. ### Algebra

First the slope. Perpendicular to a slope of -3 means a line slope of 1/3 y= 1/3 x + b. Now put in the x,y point and solve for b. write the equation of a line that has a y intercept (0,5) and is perpendicular to the line with equation …
3. ### Algebra

Write the equation of the line satisfiying the givrn geometric conditions. L has y-intercept (0, 2) and is perpendicular to the line with equation 2x-3y=6 Here is my answer please check. -2/3x-2 I can see it is wrong just by looking …
4. ### Writing this equation

how do I write the equation of a line perpendicular to the line 6x – 3y=10 and containing the point (-6, 2). The line you are given can have its equation rewritten im y = mx + b as: y = 2x - 10/3 That tells you that is slope is m …
5. ### algebra2

Which choice could be the equation of a line perpendicular to the line represented by this equation?
6. ### algebra ll

Which choice is the equation of a line that passes through the point (5, –1) and is perpendicular to the line represented by this equation?
7. ### algebra

Which choice is the equation of a line that passes through the point (–6, –2) and is perpendicular to the line represented by this equation?
8. ### algebra

Which choice is the equation of a line that passes through the point (5, –1) and is perpendicular to the line represented by this equation?
9. ### algebra

Which choice is the equation of a line that has a y-intercept of 7 and is parallel to the line represented by this equation?
10. ### Algebra

Please Check My Anwsers What is the slope of the line in the graph show below?

More Similar Questions