f(x) = x2 + 6x + 5 x + 1 ; a = -1

Question

Use a graph of f or some other method to determine what, if any, value to assign to f(a) to make f continuous at x = a

Answer 1

f(x) = x²+ 6x + 5x + 1

f(x) = x² + 11x + 1

f(-1) = (-1)² - 11 + 1

f(-1) = 1 - 11 + 1

f(-1) = -9