Units #1-3 Practice Assignment

Front

What is the sum of (3 - 2x + 2x²) + (4x - 5 + 3x²)?

Back

5x² + 2x - 2

Front

Which set of ordered pairs represents a function?

Back

{(6,-5), (7, -3), (8, -1), (9, 1)}

Front

What expression can you use to find the perimeter of a triangle with sides represented by 6x and 8?

Back

6x + 8

Front

Evaluate f(-1) if f(x) = 2x² + 5x - 3.

Back

f(-1) = -6

Front

What is a function in mathematics?

Back

A relation where each input has exactly one output.

Front

What is the definition of a polynomial?

Back

An expression consisting of variables and coefficients, involving only addition, subtraction, multiplication, and non-negative integer exponents.

Front

What is the degree of the polynomial 2x² + 3x + 1?

Back

2 (the highest exponent of x).

Front

What is the formula for the perimeter of a rectangle?

Back

P = 2(length + width).

Front

What does it mean for a function to be linear?

Back

A function is linear if it can be graphically represented as a straight line.

Front

What is the quadratic formula used for?

Back

To find the roots of a quadratic equation ax² + bx + c = 0.