SOLUTION: write a equation of a line with x intercept=3 and y intercept =-4 y=mx+b

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Question 214202: write a equation of a line with x intercept=3 and y intercept =-4
y=mx+b
Answer by drj(1380) About Me  (Show Source):
You can put this solution on YOUR website!
Write a equation of a line with x intercept=3 and y-intercept =-4.

y=mx%2Bb

Step 1. The x-intercept occurs when y=0 or at the point (3,0). Substitute x=3 and y=0 into

y=mx%2Bb

0=3m%2Bb

3m=-b

Step 2. We can find b and then we can find the slope m. The y-intercept occurs when x=0 or at the point (0,-4). Substitute x=0 and y=-4 into the equation

y=mx%2Bb

-4=0%2Bb

b=-4

Step 3. Then 3m=-(-4) or m=4/3.

Step 4. ANSWER: So the equation is y=4x%2F3-4

I hope the above steps were helpful.

For free Step-By-Step Videos on Introduction to Algebra, please visit http://www.FreedomUniversity.TV/courses/IntroAlgebra or for Trigonometry visit http://www.FreedomUniversity.TV/courses/Trigonometry.

And good luck in your studies!

Respectfully,
Dr J