SOLUTION: Okay, I'm sorry but I really don't understand what you did there. To specify a bit more. The dimensions of the facade of the house, should be 7m wide and 4 ms high, it should be

Question 956118: Okay, I'm sorry but I really don't understand what you did there. To specify a bit more.
The dimensions of the facade of the house, should be 7m wide and 4 ms high, it should be a parabola, use the origin of the parabola as one corner. Find the quadratic equation to that.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
The dimensions of the facade of the house, should be 7m wide and 4 ms high, it should be a parabola, use the origin of the parabola as one corner. Find the quadratic equation to that.
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3 points are (0,0), (3.5,4) and (7,0)
y = ax^2 + bx + c
At x = 0, y = 0 --> c = 0
----
At x = 7, y = 0
49a + 7b = 0
7a + b = 0
b = -7a
---
At x = 3.5, y = 4
12.25a + 3.5b = 4
Sub for b
12.25a - 24.5a = 4
-12.25a = 4
a = -16/49
---
b = 16/7
-------------
-->

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