Function Evaluation Skills Quiz

Given the function $$f(x) = 2x + 5$$ , what is $$f(3)$$ ?

If $$f(x) = x^2 - 4x + 7$$ , find $$f(2)$$ .

If $$f(x) = \sqrt{x+1}$$ , what is $$f(8)$$ ?

Suppose the graph of $$f(x)$$ passes through the point $$(2, 7)$$ . What is $$f(2)$$ ?

Given $$f(x) = 3x - 7$$ , what is $$f(-2)$$ ?

If $$f(x) = x^2 - 1$$ , and $$f(x) = 8$$ , what is $$x$$ ?

Suppose the graph of $$f(x)$$ passes through $$(0, -4)$$ . What is $$f(0)$$ ?

Suppose the graph of $$f(x)$$ passes through $$(4, 0)$$ . What is $$f(4)$$ ?

If $$f(x) = x^2 - 5x + 6$$ , what is $$f(1)$$ ?

Suppose the graph of $$f(x)$$ passes through $$(5, -2)$$ . What is $$f(5)$$ ?