joelalberto33 joelalberto33
  • 23-06-2020
  • Mathematics
contestada

Solve the system of equations.
y= 3x
y= x2-10

Respuesta :

grandmateeth
grandmateeth grandmateeth
  • 23-06-2020

Answer:

(-5, 2) and (2, 6)

Step-by-step explanation:

Use the substitution method. We know that y = 3x and y = x^2 - 10, so we can set them equal to one another.

3x = x^2 - 10

x^2 - 3x - 10 = 0

Use the quadratic equation to solve for x.

x = - 5, 2

Now solve for y using these two values of x by substituting it back into the equations.

y = - 15,  6

In coordinate form, (-5, 2) and (2, 6)

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