SOLUTION: If there is only one solution to the equation 0= -x^2 + bx -8 what are the possible values of b?
Algebra.Com
Question 1010344: If there is only one solution to the equation 0= -x^2 + bx -8 what are the possible values of b?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
One solution means this parabola touches the
x-axis at one point
The quadratic formula is:
Just get rid of the part that gives 2 solutions,
the +- part.
--------------
-----------------
check the answers:
must equal zero, so
and
OK
Here is the plot:
RELATED QUESTIONS
Which statement best reflects the solution(s) of the equation?
The equation and answer (answered by MathLover1,greenestamps)
1.) If the roots of the quadratic equation x(sq)+bx+24=0 are integers, find the possible... (answered by Alan3354)
If (2x – 2)(2 – x) = 0, what are all the possible values of x?
A. 0 only B. 1 only C.... (answered by jim_thompson5910)
if ax^2+bx+c=0 and x=2 or 6/7
what are the values of a b... (answered by ikleyn)
Find all real values of b such that the equation: x^2 + bx + 6b = 0
only has integer... (answered by MathLover1)
The complex number 3-4i is one root of the quadratic equation x^2+bx+c=0.
What is the... (answered by josgarithmetic)
Explain why x^2+bx-c=0 must have one positive real and one negative real solution when b... (answered by josgarithmetic)
How do you find real numbers a,b and c so that the graph of the function {{{ y=ax^2+bx+c... (answered by josgarithmetic,MathTherapy)
17. Suppose the real numbers a, b, and c are such that the graph of y = ax2 + bx + c is... (answered by greenestamps)