Find the slope of each graph. Express the answer in simplest form. Can you please show me a graph you answer

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?

Which graph represents the linear function below? y-3=1/2(x+2)

What is the value of x? enter your answer in the box.