NC Math 3 EOC released #18-30

Front

Back

The domain is all real numbers except for x = -3, where the function is undefined.

Front

What is a random sample?

Back

A random sample is a subset of individuals chosen from a larger set, where each individual has an equal chance of being selected.

Front

How do you find the inverse of a function?

Back

To find the inverse, swap the x and y variables and solve for y.

Front

What is the area of an isosceles trapezoid with bases 16 feet and 26 feet and height 13 feet?

Back

Area = 0.5 * (base1 + base2) * height = 0.5 * (16 + 26) * 13 = 273 square feet.

Front

What is the length of the diagonal in a rectangle?

Back

Front

What is the formula for the area of a trapezoid?

Back

Front

What does it mean for two lines to be parallel?

Back

Two lines are parallel if they have the same slope and will never intersect.

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is always 180 degrees.

Front

What is the formula for the slope of a line?

Back

Front

What is the definition of a function?

Back

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