without drawing the graph of the equation, determine how many points the parabola has in common with the x-axis and whether its vertex lies above, on, or below the x-axis.
y=2x^2+x-3
A. 2 points in common; vertex below x-axis
B. no points in common; vertex below x-axis
C. 1 point in common; vertex on x-axis
D. 2 points in common; vertex above x-axis

Hey! We 've verified this expert answer for you, click below to unlock the details :)

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

Do you know how to tell whether the graph opens up or down?

if the coefficient of x² is positive the parabola opens up. If it's negative the parabola opens down

and to find the x-coordinate of the vertex use x = -b/(2a)

Looking for something else?

Not the answer you are looking for? Search for more explanations.

## More answers

Looking for something else?

Not the answer you are looking for? Search for more explanations.