Math 1 EOC Review #2

Front

What does the y-intercept of a line of best fit represent?

Back

The y-intercept represents the predicted value of the dependent variable when the independent variable is zero. For example, in a context of ticket prices, it could represent the predicted price of a ticket in a specific year.

Front

What is the general form of an exponential growth function?

Back

The general form is f(x) = a(b)^x, where 'a' is the initial amount, 'b' is the growth factor, and 'x' is the time period.

Front

How do you determine the total population from two functions modeling growth and removal?

Back

You add the two functions together. For example, if f(x) models growth and g(x) models removal, then h(x) = f(x) + g(x).

Front

What does the inequality 2x - y < 10 represent graphically?

Back

It represents a region below the line 2x - y = 10 on a graph, indicating all the points (x, y) that satisfy the inequality.

Front

What is a strong positive relationship in a data set?

Back

A strong positive relationship means that as one variable increases, the other variable also increases consistently.

Front

What is the formula for calculating total cost in a rental situation?

Back

The total cost can be calculated using the formula f(d) = fixed cost + variable cost per day * number of days rented.

Front

How do you solve for 'd' in the equation f(d) = 120 + 60d when f(d) = 360?

Back

Set the equation 360 = 120 + 60d, then solve for d: 60d = 240, so d = 4.

Front

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

Back

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

Front

What is the significance of the line of best fit in data analysis?

Back

The line of best fit summarizes the trend in the data, allowing for predictions and insights about the relationship between variables.

Front

What is an exponential decay function?

Back

An exponential decay function is a function of the form f(x) = a(b)^x where 0 < b < 1, indicating a decrease over time.