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Pachacha [2.7K]
2 years ago
10

Tell whether the ordered pair is a solution to the system.

Mathematics
2 answers:
DerKrebs [107]2 years ago
7 0

Answer:

no

Step-by-step explanation:

no. substitute -1 for x and -2 for y.

the first one is -1 - 10

this equals -11 not 3

Pavlova-9 [17]2 years ago
6 0
I think it’s a no but but I’m not sure
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The area of the triangle formed by points of intersection of parabola y=a(x−3)(x+2) with the coordinate axes is 10. Find a if it
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Answer: a = 4

Step-by-step explanation: Area of a triangle is calculated as: A_{t}=\frac{b.h}{2}.

The triangle formed by the parabola has base (b) equal to the distance between the points where the graph touches x-axis and height (h) is the point where graph touches the y-axis.

The points on the x-axis are the roots of the quadratic equation:

a(x-3)(x+2)=0

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or

x + 2 = 0

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So, base is the distance between (-2,0) and (3,0).

Since they are in the same coordinate, distance will be:

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a = 4

The constant a of the function y = a(x-3)(x+2) is 4.

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2 years ago
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Answer:

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Step-by-step explanation:

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