Which of the following is a point you can generate to create the parabola for the quadratic equation y=-6x^2+3x=8?

(-6, 8)
(-6, 206)
(-3, -55)
(-3, 323)

1 answer

To determine which point can be generated from the quadratic equation \( y = -6x^2 + 3x + 8 \), we need to compute the value of \( y \) for various values of \( x \).

First, let's express the equation clearly:

\[ y = -6x^2 + 3x + 8 \]

Now, we can evaluate \( y \) for \( x = -6 \) and \( x = -3 \).

  1. For \( x = -6 \):

\[ y = -6(-6)^2 + 3(-6) + 8 \] \[ = -6(36) - 18 + 8 \] \[ = -216 - 18 + 8 \] \[ = -216 - 10 \] \[ = -226 \]

So, the point for \( x = -6 \) is \( (-6, -226) \), which does not match either of the choices.

  1. For \( x = -3 \):

\[ y = -6(-3)^2 + 3(-3) + 8 \] \[ = -6(9) - 9 + 8 \] \[ = -54 - 9 + 8 \] \[ = -54 - 1 \] \[ = -55 \]

So, the point for \( x = -3 \) is \( (-3, -55) \), which matches one of the given choices.

Thus, the correct answer is:

(-3, -55)