Day 2 of District Assessment Review

Front

What is the first step to solve the formula for y in the equation Ax + y = B?

Back

Subtract Ax from each side to isolate y.

Front

What does a strong positive correlation indicate in a data set?

Back

It indicates that as one variable increases, the other variable also tends to increase.

Front

What is the general form of a linear function?

Back

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

Front

How do you determine the cost per ticket if a customer purchased 5 tickets for $90 and another purchased 8 tickets for $120?

Back

Set up a linear equation based on the total cost and number of tickets to find the cost per ticket.

Front

What is the slope of the linear function y = 16 + 3x?

Back

The slope is 3.

Front

What does the y-intercept represent in a linear equation?

Back

It represents the value of y when x is 0.

Front

How can you graph the equation y = -x + 2?

Back

Plot the y-intercept (0, 2) and use the slope (-1) to find another point.

Front

What is the significance of the coefficients in a linear equation?

Back

The coefficients determine the slope and y-intercept, which define the line's steepness and position.

Front

What is the formula to calculate the slope between two points (x1, y1) and (x2, y2)?

Back

The slope (m) is calculated as m = (y2 - y1) / (x2 - x1).

Front

What does it mean if a linear equation has a negative slope?

Back

It means that as x increases, y decreases.