1.2 8th grade 1st Semester Review

Front

What is the point where a line crosses the y-axis called?

Back

y-intercept

Front

Which number is between the two numbers on the number line: 59%, \(\frac{9}{7}\), \(\sqrt[]{25}\), \(\sqrt[]{49}\)?

Back

\(\sqrt[]{25}\) (which equals 5)

Front

Write the equation of the line with a slope of -3 and a y-intercept of -3.

Back

y = -3x - 3

Front

Arrange the following rooms by the widths of the windows in descending order: Master bedroom, Kitchen, Living room, Study, Guest bedroom.

Back

Study, Living room, Master bedroom, Guest bedroom, Kitchen

Front

What is the measure of x if the options are: 101°, 111°, 121°, 131°?

Back

111°

Front

Define the term 'slope' in mathematics.

Back

The slope is a measure of the steepness of a line, calculated as the rise over run.

Front

What is the formula for calculating the slope between two points (x1, y1) and (x2, y2)?

Back

Slope (m) = \(\frac{y2 - y1}{x2 - x1}\)

Front

What does the term 'x-intercept' refer to?

Back

The x-intercept is the point where a line crosses the x-axis.

Front

How do you find the y-intercept of a linear equation in the form y = mx + b?

Back

The y-intercept is the value of b in the equation.

Front

What is the difference between a rational number and an irrational number?

Back

A rational number can be expressed as a fraction, while an irrational number cannot be expressed as a simple fraction.