Question 1089045

for what value of c does the quadratic function f(x)=x^2-6x+c have directly one x-intercept 
<pre>There will be ONE ROOT/ZERO if the DISCRIMINANT: {{{b^2 - 4ac = 0}}}
Substitute - 6 for b, 1 for a, and c for c to get a value of: {{{highlight_green(matrix(1,3, highlight(9), for, c))}}}