***October 2013 - Mathematics Level 2***

<p>Was the answer to the weird curvy looking graph the reflection against the origin?</p>

<p>equation with 5 as y intercept: y=-4x+5 right…? lol
third term 18, r=-3, second term: -6
sphere’s volume is 75.8 radius: 2.6</p>

<p>f(g(x))=x and g(x)=1/x, f(x): 1/x
video store with d n and x variables: n=x/(0.6d)
f(x+3)=f(x)•f(3): e^x</p>

<p>Heyhihello, I got the same answers as you on those problems.</p>

<p>f(2)=f(4): (x-3)^2
log base 1.05 x=10: 1.63
f is half of c; -24.6 (please tell me it was asking for what temp in C would make it true and not what temp in F…?)</p>

<p>ln 2(rt2)+1 for one involving f and g
theta for one was 120 degrees does anyone remember the question ?</p>

<p>yup those are all right…</p>

<p>can someone explain the box/whisker plot? i thought only five scores were shown and one was 70<=x<=90 but ive never learned about box plots
I, II, and III true for 2^x and x^2 for x>2
value of k which gives f(x)=(3x+6)/(x+k) no vertical asymptote: 2</p>

<p>Yes to all three</p>

<p>What was the one that was like distance of (2x, 2y) from the origin if (x,y) is 3 away?</p>

<p>That was 6.</p>

<p>Wait, for the Fahrenheit and Celsius question, didn’t it ask for F?</p>

<p>when n=5 what gives greatest value: 6/(n-1)
distance (x,y) is 3 distance (2x, 2y): 6
which variation of f and g is => for all x and showed a graph: it was the top graph minus the bottom graph (not sure which was f and which was g)</p>

<p>at what time t is ball at 20 ft: 1.12
last question: should be a10 times i</p>

<p>Was there an answer of .866</p>

<p>why is video store n = x/0.6d ?</p>

<p>What did you guys get for the exponential reg question where…
initial : 400 phones
5 weeks : 850 phones
10 weeks : 1520 phones</p>

<p>What’s the minimum # of weeks to sell 10,000 phones</p>

<p>I got 24</p>

<p>Also, what did you get as an answer for the box and whiskers plot? I got 75%</p>

<p>@matthew5</p>

<p>40 percent off DVD (d) = (1-0.4)(d)</p>

<h1>of dvd’s bought = n</h1>

<p>total price before taxes = x</p>

<p>so you would do 0.6d*n=x, solve for n</p>

<p>Box plot was 50%</p>

<p>ok so 3 wrong 0 skip is what score</p>