Answer with Equation. Lisa has a certain amount of money. She spent $90 and has 3/4 left. what was her original price?
1 answer:
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<h2>Answer:</h2>
-1/3x
<h2>Step-by-step explanation:</h2><h3>Known :</h3>- x1 = -3
- x2 = 0
- y1 = 1
- y2 = 0
- Correct line equation
We can find the straight line equation using this formula,
Insert all we know inside the formula,
Use cross multiplication,
3(y - 1) = -1(x + 3)\
3y - 3 = -x - 3
3y = -x - 3 + 3
3y = -x
y = -1/3x
<h3>Conclusion :</h3>The correct equation is y = -1/3x