Question
What is the axis of symmetry for the function? y = x^2 + 3x - 4
A. y = -2
B. y = -1.5
C. x = -2
D. x = -1.5
A. y = -2
B. y = -1.5
C. x = -2
D. x = -1.5
Answers
tracy
x= -1.5
Steve
Before you post more of these, just remember that the axis of symmetry is x = -b/2a
This comes right from the quadratic formula:
x = [-b +/- sqrt(b^2-4ac)]/2a
= -b/2a +/- sqrt(b^2-4ac)/2a
The roots are symmetrically located around the line x = -b/2a
This comes right from the quadratic formula:
x = [-b +/- sqrt(b^2-4ac)]/2a
= -b/2a +/- sqrt(b^2-4ac)/2a
The roots are symmetrically located around the line x = -b/2a