The graph of 5x-2y=10 intersects the x-axis and y-axis what are the order pairs for these two points of intersection?
A.(2,0) and (0,5)
B.(2,0) and (0,-5)
C.(-2,0) and (0,5)
D.(-2,0) and (0,-5)
math $$ - Knights, Thursday, February 21, 2013 at 5:56pm
to get the x intercepts and y intercepts ( or as you call it two points of intersection), set one variable to 0 and solve for the other. then set the other variable to 0 and sovle for the first.
so let x be 0 first. 5*0 -2y = 10
so -2y = 10,
so y= -5. We write this as (0,-5) since x goes first and y last.
doing this for the second scenario, we set y = 0. so,
5x - 2*0 = 10
x=2. Thus, since x goes first, we find (2,0)
therefore, we get (2,0) and (0,-5)
and which answer is that may i ask? it is B.
math $$ - Angie, Thursday, February 21, 2013 at 6:05pm
ty sooooo much
another question (sorry about all these just trying to get this done and learn it before tom.)
Jennie calculated the probabilities of various events involving a coin. What is the probability of a coin landing on heads at least twice when the coin is flipped three times
*i think it is d and if it is i need work for it* *no matter what i need work*
math $$ - Angie, Thursday, February 21, 2013 at 6:09pm
again sorry did it again