Keystone Algebra Module 2 Practice (from Samplers)

Front

What is a function in mathematics?

Back

A function is a relation between a set of inputs and a set of possible outputs where each input is related to exactly one output.

Front

What does a graph represent in relation to a function?

Back

A graph visually represents the relationship between the input (x-axis) and output (y-axis) of a function.

Front

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

Back

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

Front

How do you determine the slope of a line from a graph?

Back

The slope is determined by the rise over run, which is the change in y divided by the change in x between two points on the line.

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two variables by displaying data points on a Cartesian plane.

Front

What is the line of best fit?

Back

The line of best fit is a straight line that best represents the data on a scatter plot, minimizing the distance between the line and all data points.

Front

How do you find the y-intercept of a linear equation?

Back

The y-intercept is found by setting x to 0 in the equation and solving for y.

Front

What is a bar graph?

Back

A bar graph is a visual representation of data using bars of different heights or lengths to compare different categories.

Front

What does it mean for a graph to show y as a function of x?

Back

It means that for every value of x, there is exactly one corresponding value of y.

Front

How can you interpret the data from a bar graph?

Back

You can interpret the data by comparing the heights of the bars to see which categories have higher or lower values.