Math 76O-250
Calculus for Business
This is Paper Test # 1 [Go to web quiz 1]
Numerical answers are in our text, Hoffman 11th ed.;
Methods will be discussed using other problems;
Links to other web pages were not on original test;
CAUTION: Prof McFarland makes new tests each semester.
Mathematics 250 Test 1 (Quiz : perfect = 10) given Fall 2017
Credit given in proportion to the clarity of your WORK
You need not evaluate anything beyond a point where a calulator is necessary |
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Average grade on this paper test: 6.68 |
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__________________
PRINT name above |
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[1](a)(2 pts)(Pg 13 #43) If f(x) = 2x2 - 3x + 1 , find f(x - 2) = |
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x2 + |
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x + |
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Enter numbers in boxes above. Do not enter variables |
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(#60 Pg 62, website, like web quiz #1) An open-topped box is made from an 18 cm by 18
cm square of cardboard, by removing a smaller square from each
corner, and folding up the resulting flaps, which become the
sides of the box. Express the volume V of the box in terms
of the length x of a side of the cut-out squares. |
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Ask me anything :
I studied this
stuff all night |
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Enter numbers (such as 3, ½, 0, or -4) in the above boxes |
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[2](a) |
(Prob 35 Pg 59, one number changed to make factoring easier)(2 pts)
The graphs of the following equations meet at two points, A and B,
(see figure at the right). The point A is
(-10,-5). Show ALGEBRA used
to reveal the other point : you must either factor a trinomial,
or use the quadratic formula (your choice). Credit is for algebra only ;
"guess and check" by substitution, or using graphing calculator does NOT
count as algebra. |
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If y = 2x + 15 |
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and |
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y = |
45
x+1 |
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then B = |
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, |
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) |
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[2](c)(Pg 75 #17)(2 pts) Find the limit or claim the limit does not exist : |
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x  1 |
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x2 - 1
x - 1 |
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