Question

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)

Answer 1

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

5x= 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.

Answer 2

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
a. 1/8
b. 1/6
c. 1/4
d. 1/2
*i think it is d and if it is i need work for it* *no matter what i need work*

Answer 3

again sorry did it again