Question

So lost:
For what value of the constant c is the function f continuous on (-inf, +inf) where *comments*

Answer 1

try setting \[t^2 - c = ct + 2\] then let t = 4. Afterwards solve for c.

Answer 2

lolling at the file name

Answer 3

Just evaluate both versions of the formula at s = 9.

cs + 6 = 9c + 6
cs^2 - 6 = 81c - 6
Function will be continuous if these are the same.

Solve 81c - 6 = 9c + 6