Mathematics, 26.01.2020 00:31 Cedars6976
The area of a triangle formed by points of intersection of parabola y=a(x−1)(x−4) with the coordinate axes is 3. find a if it is known that parabola opens downward.
Answers: 3
is the point of intersection with y-axis.
and 
are the points of intersection with x-axis.
![6|a|=3\\ \\6a=-3\ [\text{Parabola goes downward}]\\ \\a=-\dfrac{1}{2}](/tpl/images/0470/9117/47756.png)
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The area of a triangle formed by points of intersection of parabola y=a(x−1)(x−4) with the coordinat...
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