Is this graph a function?

Is this graph a function?

Is this graph a linear or nonlinear function?

Is this graph a linear or nonlinear function?

What is the slope of this line?

What is the slope of this line?

Find the slope of the line that passes through the points (1, 4) and (7, -2)
Find the slope of the line that passes through the points (2, 5) and (4, 13)
Using the text tool (T), fill in the blank to create an equation with the given slope and y-intercept.
Using the text tool (T), fill in the blank to create an equation with the given slope and y-intercept.
A balloon is 4 ft above the ground. It is released and floats up 3 ft every second. Write an equation to model the height of the balloon as a function of time in seconds. (y = ____ x + ____)
The table shows the input and output values of a function given a rule. Which function represents the rule?

The graph shows money as a function of time. Which function represents the rule?

What is the equation for a line that goes through the points (3, 4) and (5, 8)?