Practice Test 4, Section 3, Number 11 (No Calc)
Test 3 Section 4 #36
Could you please explain question 8 of test #4 section 4 of the blue book?
Test 3 Section 3 #9 please
Test 2 Section 3 Number 20 please!
Test 2 Section 4 #28
If (A,B) is the solution to the system of the equations shown in the graph above , What is the value of A+B ?
A) -18
B) -9
C) 1
D) 5.5
Equation– y=10-3x
How many different ordered pairs (x,y) of positive integers satisfy the equation above?
A- none
B-1
C-2
D-3
E-5
Thanks!
Four lines j,k,l, and m lie in a plane such that j || k and l || m. Which of the following can be concluded?
I: j || l
II: k || m
III: there is a total of four points of intersection.
(A) none
(B) I only
(C) III only
(D) I and II only
(E) I, II, III
The answer is A .why it is not C
If the xy-plane, a line contains the points (4,2), (-2,-1) and (k,5). What is the value of k?
A 6
B 7
C 8
D 9
E 10
The new SAT places a heavy emphasis on the “Heart of Algebra,” which is a bizarre and tortured euphemism for, mostly, working with linear equations. One of the kinds of questions you know you’re going to see, probably more than once, on your SAT is solving systems of linear equations. For example: Which ordered pair satisfies (more…)
In the xy-coordinate plane, the slope of line l is 3 and its y-intercept is 2. What is the equation of the line perpendicular to l that intersects l at its y-intercept?
In the x-y plane, the x-axis and the graphs of the lines y = x, y = 1, and y+x=4 intersect to form a trapezoid. What is the sum of the slopes of the two nonparallel sides of the trapezoid?
A) -2
B) -1
C) 0
D) 1
E) 2
Which of the following is an equation of the line with x-intercept a and y intercept b, where ab is not equal to 0?
A) y= ax+b
B) y=bx +a
C) y= (a/b)x +a
D) y= (b/a)x +b
E) y= (-b/a)x =b
Which of the following points is collinear with (0,0) and (2,1)?
A) (-2,-1)
B) (-1,-2)
C) (-1,2)
D) (1,-2)
E) (1,2)