The first step in reading a graph is to look at the title to learn what the graph is about.
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What does a Step Graph look like?
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Use the four-step process to find the slope of the tangent line to the graph of the given function at any point.
Step 1: Put x = 0 into the equation which becomes -4y = 20 so that y = -5. So mark (0, -5) as one point on the graph. Step 2: Put y = 0 into the equation which becomes 8x = 20 so that x = 2.5 So mark (2.5, 0) as another point on the graph. Step 3: Join the two point and extend the line in both directions. Step 4: Hand in your work!
it describes the data shown simply in a short phrase