Math 151

Math 151

Quiz 2


Justify all answers with neat and organized work. Clearly indicate your answers. 20 points possible.


1. (4 pts.) Take home Maple Lab 2 (Rewriting Polynomials in Powers of (x-p)) and Maple Lab 3 (Tangents to Polynomials at an Arbitrary Point p).


2. (1 pt.) Determine whether the curve is a graph of a function of x.


Figure

3. (3 pts.) Express the function in the form f°g. (In other words, write down f(x) and g(x) so that f°g=F.)
F(x)=(x-5)9

4. (4 pts.) Evaluate the limit symbolically (algebraically), showing all significant algebraic steps.

lim
x®3 
x2+x-12
x2-5x+6

5. (4 pts.) Evaluate the limit symbolically (algebraically), showing all significant algebraic steps.

lim
h®0 
(7+h)-1-7-1
h

6. (1 pt.) Draw, in standard position, the angle whose measure is given.
- 3p
4
rad

7. (3 pts.) Recall that for polynomial functions f(x)=a+bx+cx2+dx3 of degree 3 or less, the formula for the slope of the tangent to the graph at the point where x=p is given by
m=b+2cp+3dp2.


For the following polynomial, find the equation of the tangent to the graph at the point where x=p=-1.
y=x2(2x+5)+7




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