SOLUTION: If a and c are both positive, what can be said about the graph of y=ax^2+bx-c?

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons -> SOLUTION: If a and c are both positive, what can be said about the graph of y=ax^2+bx-c?      Log On


   

Question 845755: If a and c are both positive, what can be said about the graph of y=ax^2+bx-c?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
if 'a' is positive, then the parabola y=ax^2+bx-c opens upward

if c is positive, then y=ax^2+bx-c has a y-intercept that is negative.