Semester 1 Final Exam Review Topic 3 and Topic 4 -Part 2

Front

What does a correlation coefficient of r = 0.92 indicate?

Back

A strong positive correlation.

Front

Solve the system of equations: 4x + y = 6 and x - 2y = 6.

Back

(2, -2)

Front

What is a line of best fit?

Back

A line that best represents the data on a scatter plot.

Front

Determine the solution type for the system: y = -4x + 7 and 8x + 2y = 14.

Back

Infinitely many solutions.

Front

Write the explicit formula for Samantha's savings: She saves $200 in the first month and increases by $50 each month.

Back

Front

What is the definition of a strong positive correlation?

Back

A relationship where as one variable increases, the other variable also increases significantly.

Front

What does it mean if a system of equations has no solution?

Back

The lines representing the equations are parallel and never intersect.

Front

What is the explicit formula for an arithmetic sequence?

Back

Front

How do you determine if a line is a good estimate of best fit?

Back

By checking how closely the line follows the trend of the data points.

Front

What is the solution to the equation 2x + 3 = 7?

Back

x = 2.