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What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

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?