Browse Questions

# If $a \;>\;0$ and $b^2-4ac=0,$ then the curve $y=ax^2+bx+c$

(a) cuts the x-axis

(b) touches the x-axis and lies below it

(c) ties entirely above the x-axis

(d) touches the x-axis and lies above it
Can you answer this question?

(d) touches the x-axis and lies above it
answered Nov 7, 2013 by