Warm-Up #1 1/25/2013. The following data set represents the height of a ball over a period of distance, in feet. Determine whether a linear or quadratic equation would be the best fit. Find this equation and explain why.
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The following data set represents the height of a ball over a period of distance, in feet. Determine whether a linear or quadratic equation would be the best fit. Find this equation and explain why.
The expression 2π(rh + r2) represents the total surface area of a cylinder with height h and radius r. What is the surface area of a cylinder with height 5 centimeters and radius 2 centimeters? Leave your answer in terms of pi.
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They may be taken up at any time for a quiz grade.
(x-values) in a relation.
Range: the set of all outputs
(y-values) in a relation.
of its inputs (x-values) provides exactly one
A relation is a set of data with no restriction on
There are many ways to represent relations:
These are all ways of showing a relationship between two variables.
X values are always located
on the right and y values are
on the left.
They can be represented by
words, symbols or numbers.
This represents a function as every input value (x) has only been used once.
(x and y values may be repeated).
This represents only a relation
because the input value or
x-value of 2 was used twice.
Therefore this relation is not a
All functions are relations but not all relations are functions!
Vertical Line Test: if every vertical line you can draw goes through only 1 point then the relation is a function.