Homework#6 (Flashcardziz) U1LC#1 Review Problems

Front

What is a quadratic function?

Back

Front

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

Back

The y-intercept is the value of y when x = 0. It represents the starting point of the function on the y-axis.

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two data sets, displaying points that represent the values of two variables.

Front

What is linear regression?

Back

Linear regression is a statistical method used to model the relationship between a dependent variable and one or more independent variables by fitting a linear equation to observed data.

Front

What does a negative slope indicate in a linear function?

Back

A negative slope indicates that as the independent variable increases, the dependent variable decreases.

Front

What is the formula for calculating the slope of a line?

Back

Front

What is the significance of the vertex in a quadratic function?

Back

The vertex of a quadratic function is the highest or lowest point on the graph, depending on the direction of the parabola. It represents the maximum or minimum value of the function.

Front

How do you interpret the coefficients in a linear regression equation?

Back

Front

What is the purpose of a regression equation?

Back

A regression equation is used to predict the value of a dependent variable based on the value(s) of one or more independent variables.

Front

What does it mean if a scatter plot shows a positive correlation?

Back

A positive correlation in a scatter plot means that as one variable increases, the other variable also tends to increase.