Linear function/function notation

Front

If f(x) = 2x + 1, find f(1).

Back

f(1) = 3

Front

If f(x) = 2x + 1, what would be your first step to find f(1)?

Back

Plug a 1 in for all the x's

Front

Which equation matches the table?

Back

y = x + 5

Front

f(x) is the same thing as ______.

Back

y

Front

If a question asks you to find f(2), what does that mean?

Back

Let x = 2

Front

What is a linear function?

Back

A function that graphs to a straight line, typically in the form f(x) = mx + b.

Front

What does 'm' represent in the function f(x) = mx + b?

Back

The slope of the line.

Front

What does 'b' represent in the function f(x) = mx + b?

Back

The y-intercept of the line.

Front

How do you find the slope between two points (x1, y1) and (x2, y2)?

Back

Slope (m) = (y2 - y1) / (x2 - x1).

Front

What is function notation?

Back

A way to represent a function using symbols, typically f(x) to denote the output of the function for input x.