Front

What is a function?

Back

A function is a relation between a set of inputs and a set of possible outputs where each input is related to exactly one output.

Front

Which set of values represents a function?

Back

The set of values must have unique x-coordinates. For example, (6,-5), (7,-3), (8,-1), (9,1) is a function.

Front

How is 123,000,000,000 expressed in scientific notation?

Back

1.23 x 10^11

Front

What does the graph of a function look like?

Back

A function's graph passes the vertical line test; no vertical line intersects the graph at more than one point.

Front

What is the vertical line test?

Back

A method to determine if a graph represents a function; if any vertical line crosses the graph more than once, it is not a function.

Front

What is the equation to find the meeting point of two hikers with different elevations?

Back

The equation is 2,300 + 400h = 4,300 - 600h.

Front

What is scientific notation?

Back

A way of expressing numbers that are too large or too small to be conveniently written in decimal form, using powers of ten.

Front

How do you convert a number to scientific notation?

Back

Move the decimal point to create a number between 1 and 10, then multiply by 10 raised to the number of places moved.

Front

What is the square root of 85?

Back

The square root of 85 is approximately 9.22.

Front

What does it mean for a graph to be 'not a function'?

Back

It means that there exists at least one x-value that corresponds to more than one y-value.