Assessment: 11-Point Assessment #3 (of 6)    due: 10/10/2017

Do not lose this assessment. Do all your math on your own paper. Do not write on this assessment.

a. Solve for x:  1/5 + (2/5)x = 3/5
b. Solve for b:  2(3b - 1) = -3(4b - 3)
c. Solve for n:  -2 - 10n < -12 - 4n
d. Subtract & Simplify:  (-2x^2 + 3x - 5) - (x^2 + 3x - 5)

e. Briefly describe what a function is.
f. Write a definition for the word domain.
g. The set of outputs from a function is called what?
h. No or Yes:  -3.5 is in the interval (-3.5, 0].
i. No or Yes:  If t = 3.14, then t satisfies:  -2 ≤ t ≤ 3

j. Zelmo's IQ is 15 points lower than Herb's IQ. Let Z represent Zelmo's
   IQ (in points). Write an algbraic expression to represent Herb's IQ.

k. Let P represent the original price of a item. Write an algebraic
   expression to represent the item's price for a '37% off' sale.

l. Pickles Inc. sells pickels for $5 each. It cost $3 to produce a pickle.
   The equation P = 2n - 10,000, where n is the number of pickles 
   sold, represents Pickles Inc. profit.  How many pickles have to be sold 
   to generate a profit of $10,000?

m. Write the ordered-pair for output 7 and input 2.
n. The ordered-pair (3, -4) is graphed (plotted) in what quadrant?
o. The ordered-pair (-3, 0) implies an input of ___ produces an output of ___.
p. If Q(t) = 4 + 2(t), then Q(t) = 20 when t equals what?

The next three problems use function:  f(x) = 2(x)^2 - 4(x) + 49

q. Evaluate:  f(3)
r. Evaluate:  f(-2)
s. No or Yes:  f(0) = 91

The last two problems use the following set A of ordered-pairs.
A: { (1,1) (-1,1) (-1,-1) (1,-1) (0,0) (0,3) (-3,0) (0,-3) (3,0) }

t. No or Yes:  Set A could be function. Explain your answer.
u. Draw a cartesian coordinate system and plot the points in set A.