I believe these math questions are part of the January 2013 SAT Test. Form Codes AEWV, BWWV
This is section 4 of the test.
12. In the figure above, a=20 and b=14. what is the value of x?
a)6
b)8
c)10 <-CORRECT ANSWER
d)12
e)14
Unfortunately I can not find the picture of the figure online. but it almost has the shape of a complete square. Maybe someone out there knows what problem I’m talking about and can help?
In the xy-plane, line l and k are parallel. Line l passes through the point (-1, -6) and the vertex of the parabola with the equation y= -2(x-1)^2+2. If the point (r, s) lies on line k, which of the following is another point on line k?
A) (r+1, s+4) <--- Correct answer
B) (r-1, s+4)
C) (r+1, s-4)
D) (r+4, s+1)
E) (r-4, s-4)
For your second question:
The vertex of the parabola is (1,2), as a parabola y=a*(x-h)^2+k has vertex (h,k). Then, the slope of line 1 is (2-(-6))/(1-(-1))=4. Line 2 will have the same slope of 4. Now, the slope is the number of units you increase in y for every increase in x by 1. Thus, when you go 1 unit right from r to r+1, you go up 4 units in the y direction fro s to s+4. Therefore, the answer is (r+1,s+4), or A.
please i took a 530 on the math section on sat i really need to raise my score to 600.
can someone please answer this question ?- IN A poll 160 students were each asked 2questions, A total of 62 students answered the first question and a total of 55 students answered the second question, if 15 oof these students answered both questions, how many of these students answered neither questions?
@loli45 Set up a Venn Diagram;
Universal set is 160
overlap of 2 circles is 15, that goes in 1st.
That leaves 47 getting just 1st question right, 40 getting just 2nd right.
160 - (47 + 40 + 15) = 58 getting neither question correct.