SOL Review Most Missed Questions

Front

What is the minimum number of bags of popcorn that must be sold to make a $200 profit?

Back

400 bags

Front

What is a function in mathematics?

Back

A relation where each input has exactly one output.

Front

What is the equation of the line of best fit for a set of data?

Back

y = -3.1x + 383

Front

What does the variable 't' represent in the equation t=0.09c?

Back

The tax charged for clothing purchases.

Front

How do you calculate f(-4) if f(x) = -2x + 3?

Back

f(-4) = 11.

Front

What is the purpose of a line of best fit?

Back

To model the relationship between two variables in a scatter plot.

Front

What does the slope of a line represent in a linear equation?

Back

The rate of change of the dependent variable with respect to the independent variable.

Front

What is the y-intercept in the equation y = mx + b?

Back

The value of y when x = 0.

Front

How do you determine if a graph represents a function?

Back

Use the vertical line test; if a vertical line intersects the graph more than once, it is not a function.

Front

What is the significance of the x-value in a function?

Back

It represents the input or independent variable.