Unit 3 Review

Front

Which of the following is a whole number? -2, -10, 10, -1

Back

10 is a whole number because it is a non-negative integer.

Front

What is the equation for Pythagorean theorem?

Back

The Pythagorean theorem is expressed as a² + b² = c², where c is the hypotenuse.

Front

Find the missing side length if a² + b² = c² and c = 13, a = 5, what is b?

Back

b = 12, because 5² + 12² = 13².

Front

What is the y-intercept of the line y = 4x - 10?

Back

The y-intercept is -10, which is the value of y when x = 0.

Front

If the area of a square is 63, which is closest to the side length?

Back

The side length is approximately 8, since 8² = 64.

Front

Define a whole number.

Back

A whole number is a non-negative integer (0, 1, 2, 3, ...).

Front

What does the Pythagorean theorem relate to?

Back

It relates the lengths of the sides of a right triangle.

Front

What is the formula for the area of a square?

Back

The area of a square is calculated as A = side².

Front

What is the definition of a y-intercept?

Back

The y-intercept is the point where a line crosses the y-axis.

Front

If a triangle has sides of length 5 and 12, what is the length of the hypotenuse?

Back

The hypotenuse is 13, using the Pythagorean theorem.