Understanding Function Evaluation

What is f(2)?

Priya is baking cookies and needs to evaluate the function for the given value to determine the right amount of sugar to use:

Evaluate the function for the given value:

What is x if
f(x) = -2?

Abigail is buying apples. Each apple costs $$3x + 2$$ dollars, where $$x$$ is the number of apples she buys. Evaluate the cost when $$x = 4$$ .

If $$g(x) = x^2 - 5x + 6$$ , what is $$g(3)$$ ?

Find the value of $$h(x) = 2x^2 + 3x - 4$$ when $$x = -1$$ .

Evaluate the function $$p(x) = \frac{x + 1}{x - 1}$$ for $$x = 2$$ .

Samuel is designing a garden and wants to calculate the area of a rectangular section. The area can be modeled by the function $$q(x) = 2x^2 - 3x + 1$$ where $$x$$ is the length of one side. Evaluate the function for $$x = 3$$ .

If $$r(x) = x^3 - 4x + 2$$ , what is $$r(2)$$ ?