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 = 3x^2 – 12x + 12
A. 1 point in common; vertex on x-axis
B. 2 points in common; vertex below x-axis
C. 2 points in common; vertex above x-axis
D. no points in common; vertex above x-axis
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
ganeshie8 (ganeshie8):
start with finding \(b^2-4ac\)
OpenStudy (anonymous):
somebody said it ws D so i just wanna see if there right
ganeshie8 (ganeshie8):
3x^2 – 12x + 12
^ ^ ^
a b c
OpenStudy (anonymous):
b?
ganeshie8 (ganeshie8):
how
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
my sistr said
ganeshie8 (ganeshie8):
its not b
ganeshie8 (ganeshie8):
lets find it step by step
ganeshie8 (ganeshie8):
what do you get for \(b^2 - 4ac\) ?
OpenStudy (anonymous):
ohh nevermind i found it out its C
Still Need Help?
Join the QuestionCove community and study together with friends!