Question

3. Which ordered pair is a solution of the equation y=x-4?
a. (2,6)
b. (6,2)
c. (-2,6)
d. (3,1)

4. Which ordered pair is a solution of the equation y=5x?
a. (-2,10)
b. (-5, 25)
c. (-3,15)
d. (-2, -10)

5. Which ordered pair is a solution of the equation y=-5x+4?
a. (2,14)
b. (5,-29)
c. (-3,19)
d. (5, -21)

Answer 1

I can't see which choices you made.

simply , sub each point into the equation to see if it works
e.g. in #1
(3,1) into y = x - 4
LS(left side) = 1
RS = 3-4 = -1 , looks like that one didn't work.

Answer 2

Reiny - I have a question about the substitution of the ordered pairs in the above questions, shouldn't the characters follow this (x,y) format? ~~Signed Concerned

Answer 3

correct, I was following that format
in (3,1) , x = 3, y = 1
so in y = x - 4
I let LS = y = 1
RS = x - 4 = 3-4 = -1
so the point (3,1) does NOT lie on y = x-4