PLEASE GELP WITH ALGEBRA Given the function below find f(-2). f(x) = x^2 – 3x + 5
2 answers:
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G(x) = (25 - x)/5 First lets call g(x) by its other name - y
y = (25 - x)/5 Now switch the x and y
x = (25 - y)/5 Solve for y which is now the inverse - call this
5x = 25 - y
y = 25 - 5x this is the inverse so = 25 - 5x
y = (25 - x)/5 Now switch the x and y
x = (25 - y)/5 Solve for y which is now the inverse - call this
5x = 25 - y
y = 25 - 5x this is the inverse so