Some SAT questions?

Question

If (x + y)/x, and y is a positive integer, what is the value of x?
a) -y b) 0 c) y d) y^2 e) 1/y

In a standard coordinate plane, if Q is the point (1,5), and S is the point (4,1), what is the value of QS?
a) 3 b) 4 c) 5 d) 6 e) 7

EXPLAIN!

Answer 1

1. Part of the question is missing.
2. c) 5 is the answer.
One leg of the right triangle is 3 and the other is 4.
3*3 + 4*4 = 25
25 squared is 5.

Answer 2

In a standard coordinate plane, if Q is the point (1,5), and S is the point (4,1), what is the value of QS?
a) 3 b) 4 c) 5 d) 6 e) 7

d=sqrt((1-4)^2+(5-1)^2)
d=sqrt(9+16)
d=sqrt(25)
d=5

Answer 3

2) 5

Answer 4

for the second one all you do is draw out the co-ordinates roughly and create a triangle.

then u simply use pythagorus theorum to solve it


triangle is one side of 3 and one side of 4
3^2 +4^ = 25
sqrt25
= 5

Answer 5

1.) You can't solve an equation that doesn't equal anything.

2.) No idea.