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Karo-lina-s [1.5K]
3 years ago
7

explain how you could write a quadratic function in a factored form that would have a vertex with an x- coordinate of 3 and two

distinct roots
Mathematics
1 answer:
gladu [14]3 years ago
10 0

Answer:

Two distinct roots means two real solutions for x (the parabola needs to cross the x-axis twice)

Step-by-step explanation:

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Maksim231197 [3]
Most quadratic functions(which is what you have there, to a degree of 2) are solved using factoring and the zero product law. If you can not factor then you have to use the quadratic formula or graph it. However this one can be factored.
It's pretty simple to just factor it by inspection but I use the chart method, if you know decomposition that works as well.
Factoring gives us,
(2x + 1)(x - 3) = 0
Then you set each factor to 0 and solve for x,
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2x =  - 1
x =  \frac{ - 1}{2}
And the second one,
x - 3 = 0
x = 3
The solutions to this equation are
x = -1/2, 3
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