Chapter 7, Day 8 Warm Up

Front

What is the value of b² + 4 when b = 3?

Back

13

Front

Evaluate 2(a - 5) + 2 when a = 15.

Back

22

Front

What is the result of 3x + 8 if x = 2?

Back

14

Front

Calculate 6a - 3d when a = 1 and d = 2.

Back

0

Front

Evaluate 8y + 12 - 2z for y = 4 and z = 2.

Back

40

Front

What is the formula for evaluating a quadratic expression?

Back

The formula is f(b) = b² + c, where c is a constant.

Front

Define the term 'variable' in mathematics.

Back

A variable is a symbol used to represent an unknown value.

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting variables with numbers.

Front

What is the order of operations in mathematics?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

What is the value of 2x + 3 when x = 4?

Back

11