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# Algebra/graphing etc

Question
Consider the line

5x-3y=-4

What is the slope of a line perpendicular to this line?

What is the slope of a line parallel to this line?

The slope of line is m when the equation is in the form y = mx + b.
We have 5x on the left side, so subtract it from both sides.  This gives -3y = -5x - 4.
We need the y term by itself, so divide by each term in the equation by -3.
This gives y = 5x/3 + 4/3.

From here, it is seen to have slope 5/3.
To go back and solve the first question, a perpendicular line has slope -1/m.
Since m is 5/3, the perpendicular line would have slope -3/5.

Algebra

Volunteer

#### Scott A Wilson

##### Expertise

Any algebraic question you've got. That includes question that are linear, quadratic, exponential, etc.

##### Experience

I have solved story problems, linear equations, parabolic equations. I have also solved some 3rd order equations and equations with multiple variables.

Publications
Documents at Boeing in assistance on the manufacturiing floor.

Education/Credentials
MS at math OSU in mathematics at OSU, 1986. BS at OSU in mathematical sciences (math, statistics, computer science), 1984.

Awards and Honors
Both my BS and MS degrees were given with honors.

Past/Present Clients
Students in a wide variety of areas since the 80's; over 1,000 of them have been in algebra.