Midterm Review 2023

Front

What is the solution to the equation: 2x - 3 + 4x = 27?

Back

x = 5

Front

Simplify the expression: 6x + 11y - 9x - 7y.

Back

-3x + 4y

Front

Multiply: (3.4 x 10^5)(1.2 x 10^-3).

Back

4.08 x 10^2

Front

What is located at the coordinate (5,3)?

Back

nothing

Front

Which letter matches the coordinate (4, -6)?

Back

Z

Front

What is the definition of a variable in mathematics?

Back

A symbol used to represent an unknown value.

Front

What does it mean to simplify an expression?

Back

To reduce it to its simplest form by combining like terms.

Front

What is the coordinate plane?

Back

A two-dimensional surface where points are defined by pairs of numbers (x, y).

Front

What is the formula for the slope of a line?

Back

Slope (m) = (y2 - y1) / (x2 - x1).

Front

What is the difference between a positive and negative slope?

Back

A positive slope rises from left to right, while a negative slope falls from left to right.