Click and drag on the graph window to move the veiwpoint around. Scroll on the graph window to zoom in and out.
Each grid space is 1 unit wide, and 1 unit tall. Find the distance between the pizza man and each house.
(the location of the houses and the person are represented by a black dot on the graph)
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Try using the distance formula to find the distance between the pizza man and one of the houses.
Remember, on a triangle, if you square both legs and add them together, you get the squared hypotenuse.
Square both legs of the triangle, add them together, and take the square root of the sum. This should be the distance the pizza man is from the house.