March 2012 SAT I Math Thread

<p>@davidzhao8</p>

<p>The height of the triangle was 4 so you would only find a base value for which the area is from 5-9.</p>

<p>5<1/2 b<em>h<9
10<b</em>h<18
10<4b<18
2.5<b<4.5</p>

<p>Your answer could have been anywhere from 2.5 to 4.5 (not inclusive)</p>

<p>@Niceboat</p>

<p>If I remember correctly then yes. The answer was 2.</p>

<p>f(c)=r
g(r)=c</p>

<p>c=2 r=0.</p>

<p>f(2)=0
g(0)=2</p>

<p>@Niceboat
Yeah me too, c was 2, and r was 0 I think? Or maybe I got it the other way around… Idk.</p>

<p>9.01 was an answer
one of them was 4/15 (the one with the cake)
XY was one
0 was one
what was the difference between the max and the min for the function?</p>

<p>6, SATMaster</p>

<p>@Niceboat and @zzzzzz1027</p>

<p>I got 0 :confused:
I’m pretty sure c was 0 and r was 2…</p>

<p>The answer to the f(c) and g(r) was definitely 0. What did people get for the difference between the maximum and the minimum in g(x)=f(x)+2? It seemed too straightforward…? I got 6.</p>

<p>SATMASTER, it was 6 i believe</p>

<p>9.01 was not an answer. A triangle with sides 4, 5, and x means that 1<x<9. 9.01=""> 9 so the answer was 1.9.</x<9.></p>

<p>difference between the max and the min for the function I put 6
i got 4/15 for cake</p>

<p>did anyone else get 5.5 or 11/2 for a grid in? I can’t remember the question</p>

<p>@yankeesfanatic</p>

<p>Yeah 5.5 was an answer. it was d-a.</p>

<p>@oopp
I actually spent a good 3 minutes doing that problem with 2/0 because I did not want to make any silly mistakes. The value for f(2)=0. The value for g(0)=2. </p>

<p>Unless it was asking for the r value, the answer was 2.</p>

<p>Difference was 6 because a vertical transition doesn’t affect the range.</p>

<p>The difference was 5.5 for the c-b or whatever it was, yes.</p>

<p>k good thats what i thought.
some other answers were:
1/6
35 (for the ratio)</p>

<p>1.9 was an answer</p>

<p>Did anyone get 6+ 2sqroot of 3</p>

<p>for the last one in one section</p>

<p>I got 6 for the max - min thing as well.
It’s probably “Tricky” because people might have put 2? Because it moved up two spaces? I don’t know haha.</p>

<p>@yankeesfanatic
Yes, I got 5.5. Question 14, but don’t remember what it was :P</p>

<p>@drac313
Yes, that’s what I got. I just used law of sines lol.</p>

<p>I guessed on that one^^^^</p>

<p>Answers were 6Rad2, 6RAD3, 6+2Rad3, 6, and something else</p>

<p>anyone know the answer?</p>

<p>9.01 was answer for which</p>

<p>What was the number points touching the x-axis on a graph that was translated up 3 from the original? The original was the image of a ^5 graph.
I was confused since it said between -6 and 6, but it didn’t say whether that was for the x-values or the y-values. So if you had continued the graph to the right, there would have been a 3rd point touching the x-axis, but I ended up putting 2 since I assumed the boundary was for the x-values.</p>

<p>@drac313
Yep, I got 6 + 2sqroot3 as well c:</p>