SAT Math Prep

Front

What are consecutive even numbers?

Back

Consecutive even numbers are integers that are even and follow one another in order, such as 2, 4, 6 or 10, 12, 14.

Front

How do you find the sum of three consecutive even numbers?

Back

Let the first even number be x. The next two consecutive even numbers are x+2 and x+4. The sum is x + (x+2) + (x+4) = 3x + 6.

Front

If the sum of three consecutive even numbers is 90, how do you find the largest number?

Back

Set up the equation 3x + 6 = 90. Solve for x to find the first number, then add 4 to find the largest.

Front

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

Back

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

Front

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

Back

Identify two points on the line, calculate the slope (rise/run), and use one point to find the y-intercept.

Front

What is relative frequency?

Back

Relative frequency is the ratio of the number of times an event occurs to the total number of trials or observations.

Front

How do you calculate relative frequency from a table?

Back

Divide the frequency of the specific category by the total frequency of all categories.

Front

What is a survey in statistics?

Back

A survey is a method of collecting data by asking questions to a group of people to gather information about their opinions or behaviors.

Front

What does it mean for a line to be an accurate line of best fit?

Back

A line of best fit accurately represents the trend of the data points in a scatter plot, minimizing the distance between the line and the points.

Front

How do you determine if a line is a good fit for data?

Back

Check how closely the data points cluster around the line; a good fit will have points evenly distributed around the line.