Unit 7 Review

Front

What is an even function?

Back

A function f(x) is called an even function if f(-x) = f(x) for all x in the domain of f. Graphically, even functions are symmetric about the y-axis.

Front

What is an odd function?

Back

A function f(x) is called an odd function if f(-x) = -f(x) for all x in the domain of f. Graphically, odd functions are symmetric about the origin.

Front

What does it mean if a function is neither even nor odd?

Back

A function is neither even nor odd if it does not satisfy the conditions for being even or odd. This means that the function does not exhibit symmetry about the y-axis or the origin.

Front

In a linear equation, what do the variables typically represent?

Back

In a linear equation, the variables often represent quantities that change in relation to each other, such as time and cost, or distance and speed.

Front

What is the slope-intercept form of a linear equation?

Back

The slope-intercept form of a linear equation is given by y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you find the line of best fit?

Back

The line of best fit is found using statistical methods such as least squares regression, which minimizes the distance between the data points and the line.

Front

What is the vertex of a parabola?

Back

The vertex of a parabola is the highest or lowest point on the graph, depending on whether it opens upwards or downwards. It can be found using the formula for the vertex in the form y = a(x-h)^2 + k, where (h,k) is the vertex.

Front

How do you determine the cost of an item over time with a down payment?

Back

The total cost of an item can be expressed as a function of time, where the initial cost is the down payment and the variable cost is added over time (e.g., weekly payments).

Front

What is a trend line?

Back

A trend line is a line that represents the general direction of a set of data points in a scatter plot. It is used to predict future values based on existing data.

Front

How do you interpret the slope of a trend line?

Back

The slope of a trend line indicates the rate of change between the two variables. A positive slope means that as one variable increases, the other variable also increases.