A2 Q2 Benchmark Review

Front

What is the domain of the function that describes the time needed to make cakes?

Back

The domain is \{0, 1, 2, 3, 4, 5, 6\}.

Front

For the function \(f(x)=\sqrt{x+5}\), what is the correct domain?

Back

The claim is correct because if \(x < -5\), then \(f(x)\) is equal to the square root of a negative number which is not a real number.

Front

What values of x make the function \(f(x)=\frac{x-4}{x^2+8x+12}\) undefined?

Back

The function is undefined for \(x = -6\) and \(x = -2\).

Front

If one side of a pool is 2 meters shorter than the other side and the area is 168 square meters, what are the dimensions?

Back

The dimensions of the pool are 14 meters by 12 meters.

Front

What is the equation of the function graphed that has a square root and a vertical shift?

Back

The equation is \(f(x)=\sqrt{x-2}+5\).

Front

Define the domain of a function.

Back

The domain of a function is the set of all possible input values (x-values) for which the function is defined.

Front

What is a function?

Back

A function is a relation that assigns exactly one output value for each input value.

Front

What does it mean for a function to be undefined?

Back

A function is undefined at points where the input value leads to division by zero or taking the square root of a negative number.

Front

How do you find the domain of a square root function?

Back

To find the domain of a square root function, set the expression inside the square root greater than or equal to zero.

Front

What is the area of a rectangle?

Back

The area of a rectangle is calculated by multiplying its length by its width.