SOLUTION: I was wondering how to solve for the y intercept... 3x+8y= 7/5. I have no idea how to do this its a formula used something like ysquare+ y squared i dont know. Please explain the

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: I was wondering how to solve for the y intercept... 3x+8y= 7/5. I have no idea how to do this its a formula used something like ysquare+ y squared i dont know. Please explain the       Log On


   

Question 669828: I was wondering how to solve for the y intercept...
3x+8y= 7/5. I have no idea how to do this its a formula used something like ysquare+ y squared i dont know. Please explain the formula used and the steps to complete the problem sucessfully. thank you so much.
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
Isolate y, the idea is to bring the format into y = mx + b likeness, where b is y intercept.
...
3x + 8y = 7%2F5
...
Isolate y
8y = -3x + 7%2F5
...
Divide both sides by 8
y = -3%2F8x + %287%2F5%29%2F8
...
Dividing is the same a multiplying the inverse, so
y = -3%2F8x + %287%2F5%29%281%2F8%29
...
therefore,
y = -3%2F8x + 7%2F40
...
where 7%2F40 is the y intercept
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