IM Algebra 1: U4 Lessons 1-9 Review

Front

What does the function notation V(h) represent in the context of the museum's visitors?

Back

V(h) represents the number of visitors in the museum h hours after it opens.

Front

How do you express that there were 257 visitors at 1 p.m. using function notation?

Back

V(4) = 257, since 1 p.m. is 4 hours after 9 a.m.

Front

What is the definition of a function?

Back

A function is a relation that assigns exactly one output for each input.

Front

How can you determine if a graph represents a function?

Back

Use the vertical line test: if a vertical line intersects the graph at more than one point, it is not a function.

Front

What does f(2) mean in function notation?

Back

f(2) means to evaluate the function f at x = 2.

Front

If f(2) = 4, how can this be represented as an ordered pair?

Back

It can be represented as (2, 4).

Front

What is the general form of a linear function?

Back

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

Front

What does the slope of a line represent in a function?

Back

The slope represents the rate of change of the function; it indicates how much y changes for a unit change in x.

Front

What is the y-intercept in a linear function?

Back

The y-intercept is the value of y when x = 0.

Front

How do you find the function rule from a set of points?

Back

You can find the function rule by determining the relationship between the x and y values, often using slope and y-intercept.