8th Grade Math Semester 1 Review pt 2

Front

Solve for x: 2x + 3 = 9

Back

x = 3

Front

What is the initial value (y-intercept) of the function represented by the equation y = mx + b?

Back

The initial value (y-intercept) is the value of y when x = 0, represented as (0, b).

Front

Convert the decimal 0.75 to a fraction in simplest form.

Back

3/4

Front

What is the rate of change in a linear function?

Back

The rate of change is the slope (m) of the line, calculated as the change in y divided by the change in x.

Front

Solve for x: 5x - 14 = 8x + 4

Back

x = -6

Front

What is the formula for the slope of a line?

Back

Slope (m) = (y2 - y1) / (x2 - x1) for two points (x1, y1) and (x2, y2).

Front

What does it mean for a fraction to be in simplest form?

Back

A fraction is in simplest form when the numerator and denominator have no common factors other than 1.

Front

How do you find the y-intercept from a linear equation in slope-intercept form?

Back

In the equation y = mx + b, the y-intercept is the value of b.

Front

What is the solution to the equation 3x + 5 = 20?

Back

x = 5.

Front

What is the definition of a linear equation?

Back

A linear equation is an equation that makes a straight line when graphed, typically in the form y = mx + b.