Math 8 Chapter 4 Test

Front

What is the equation of a line in slope-intercept form?

Back

The equation of a line in slope-intercept form is given by y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you calculate the area of a circle?

Back

The area of a circle is calculated using the formula A = πr², where r is the radius.

Front

What is a composite shape?

Back

A composite shape is a shape that is made up of two or more simple shapes.

Front

How do you find the upper quartile of a data set?

Back

To find the upper quartile (Q3), first arrange the data in ascending order, then find the median of the upper half of the data.

Front

What does the slope of a line represent?

Back

The slope of a line represents the rate of change of y with respect to x, indicating how steep the line is.

Front

What is the formula for the area of a rectangle?

Back

The area of a rectangle is calculated using the formula A = length × width.

Front

What is the significance of the y-intercept in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis, representing the value of y when x = 0.

Front

How do you solve a linear equation with one variable?

Back

To solve a linear equation, isolate the variable on one side of the equation using inverse operations.

Front

What is the difference between mean, median, and mode?

Back

Mean is the average, median is the middle value when data is ordered, and mode is the most frequently occurring value.

Front

What is a linear pattern?

Back

A linear pattern is a relationship between two variables that can be represented by a straight line on a graph.