Math review

Front

What is the slope-intercept form of a linear equation?

Back

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

Front

What does the slope of a line represent?

Back

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

Front

If a linear equation has a slope of -3 and a y-intercept of 4, what is the equation?

Back

The equation is y = -3x + 4.

Front

How do you find the rate of change from a table of values?

Back

The rate of change is found by calculating the change in y divided by the change in x.

Front

What is a scale factor in dilation?

Back

A scale factor is a number that scales, or multiplies, the dimensions of a figure during dilation.

Front

If point A (8, 12) is dilated to point A' (2, 3), what is the scale factor?

Back

The scale factor is ¼.

Front

What is a scatterplot?

Back

A scatterplot is a graph that shows the relationship between two variables using dots to represent data points.

Front

How can you estimate the selling price of an 8-year-old car from a scatterplot?

Back

You can find the point on the scatterplot that corresponds to the age of 8 years and read the selling price from the y-axis.

Front

What is the rate of change in a graph?

Back

The rate of change in a graph indicates how much y changes for a unit change in x.

Front

Back

It means that for every 2 years, the value of y increases by 3 inches.