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Lerok [7]
3 years ago
6

2x+8y=6, -5x-20y=-15need work because I don't understand

Mathematics
1 answer:
Vlada [557]3 years ago
4 0

Answer:

Infinitely many solutions.

Step-by-step explanation:

Step: Solve 2x + 8y = 6 for x:

2x + 8y = 6

2x + 8y + −8y =6 + −8y (Add -8y to both sides)

2x = −8y + 6

2x/2 = (-8y + 6)/2 (Divide both sides by 2)

x = −4y + 3

Step: Substitute −4y + 3 for x in −5x − 20y = −15:

−5x − 20y = −15

−5 (−4y + 3 ) −20y = −15

−15 = −15 (Simplify both sides of the equation)

−15 + 15 = −15 + 15 (Add 15 to both sides)

0 = 0


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The number of zeros of the quadratic functions, considering their discriminant, is given as follows:

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<h3>What is the discriminant of a quadratic equation and how does it influence the solutions?</h3>

A quadratic equation is modeled by:

y = ax^2 + bx + c

The discriminant is:

\Delta = b^2 - 4ac

The solutions are as follows:

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Hence, for the given values of the discriminant, we have that:

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More can be learned about quadratic functions at brainly.com/question/24737967

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