Hey there! :D
To find a vertex on a graph, you would need to look at where the line stops. This place where there is a distinct curve or stopping point and at least one line is going infinity in one direction is the vertex. The graph is much easier than any other method, because it is visual. If I was looking at the vertex on a table, I would see (especially on a quadratic) if there was a pattern to the points. Most points are opposite of each other, so it can be helpful to look at a pattern. In an equation, a parent function can help to see where the vertex is, as well (for quadratics) finding the line of symmetry with the equation to find the vertex. (-b/2a) The strategies are very different, some are easier than others. For example, I would much rather look at a graph for a vertex then do an equation to find it. Some involve looking, seeing a pattern, and others solving. They are all very different but can all be extremely helpful!
I hope this helps!
~kaikers
Answer: c
Step-by-step explanation:
Answer:

Step-by-step explanation:

Use the distribute property to multiply each term of the first binomial by each term of the second binomial.
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Collect like terms
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Hope I helped!
Best regards!
t = 9 + s is the expression for number of pages in terry's essay
<em><u>Solution:</u></em>
Given that, Terry's essay has 9 more pages than stacey's essay
Let "s" be the number of pages in Stacey essay
Let "t" be the number of pages in terry essay
To find: Expression for the number of pages in terry's essay
From given statement,
Terry's essay has 9 more pages than stacey's essay
Which means, number of pages in terry essay is 9 more than number of pages in Stacey essay
Therefore,
Number of pages in terry essay = 9 + number of pages in Stacey essay

Thus the expression for number of pages in terry's essay is found