8th Grade Math STAAR Review Readiness Standards

Front

What is a translation in geometry?

Back

A translation is a transformation that moves every point of a shape a certain distance in a specified direction.

Front

What is the rule for translating a point (x, y) 3 units to the right and 4 units up?

Back

(x, y) --> (x + 3, y + 4)

Front

How do you solve the equation 4y - 7 = 2y + 7?

Back

Add 7 to both sides: 4y = 2y + 14; then subtract 2y: 2y = 14; divide by 2: y = 7.

Front

What does a scatter plot represent?

Back

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

Front

What is the purpose of estimating in mathematics?

Back

Estimating helps to make reasonable guesses about values based on available data.

Front

What is the average (mean) of a set of numbers?

Back

The average is the sum of all numbers divided by the count of numbers.

Front

What does the slope of a line in a scatter plot indicate?

Back

The slope indicates the rate of change between the two variables represented in the plot.

Front

How can you predict values using a scatter plot?

Back

You can use the trend of the data points to estimate values for unmeasured data.

Front

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

Back

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

Front

What is a linear equation?

Back

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