Consider the grid of points shown here. Suppose that, starting at the point labeled A, you can go one set up or one step to the right at each move. This procedure is continued until the point labeled B is reached. How many different paths from A to B are possible? HINT: Note that to reach B from A, you must take 4 steps to the right and 3 steps upward.
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Step 1: To reach point B from point A, we need to take 4 steps to the right and 3 steps upward. Show more…
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Consider the grid of points shown below. Suppose that starting at the point labeled $A$ you can go one step up or one step to the right at each move. This is continued until the point labeled $B$ is reached. How many different paths from $A$ to $B$ are possible? HINT: Note that to reach $B$ from $A$ you must take 4 steps to the right and 3 steps upward.
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Consider the grid of points shown at the top of the next column. Suppose that, starting at the point labeled A, you can go one step up or one step to the right at each move. This procedure is continued until the point labeled B is reached. How many different paths from A to B are possible?
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