Question

Which ordered pair is on the graph of the equation 2x + 5y = 4?

(3, –2)
(7, –2)
(0, –1)
(0, 1)

Answer 1

In other words, which of the pairs is a solution to the equation.

2x + 5y = 4

2(3) + 5(-2) = 4 ---> 6-10=4 Not A.
2(7) + 5(-2) = 4 ---> 14-10=4 YES B.
2(0) + 5(-1) = 4 ---> -5=4 Not C.
2(0) + 5(1) = 4 ---> 5=4 Not D.

Answer 2

I plugged in the values, that's all.

Answer 3

ok i have a question there is one im really confused on may u help

Answer 4

Sure.

Answer 5

theres D

Answer 6

\[y-4=2(x+1)\]set it into a slope intercept formula, or into a y=mx+b form.
\[y-4=2x+2\]\[y=2x+6\]
choose any random value for x.
lets say x=-2
y=2(-2)+6 ---> y=2, so your first point is (-2,2)
Now, lets say x=-3
y=2(-3)+6 ---> y=0, so your first point is (-3,0)

also the always given y-intercept b, which is (0,6)

which line has points
(-2,2) , (-3,0) and (0,6) ?

Answer 7

2nd graph on the second attachment.

Answer 8

well my slope says 0,6 which im getting from the intercept of the last one D

Answer 9

your slope says?
I know that slope is 2, and y-intercept is 6
agree?

Answer 10

yes i completely agree but looking back on all of my ther ones i always tend to mix the 2 up

Answer 11

What up @SolomonZelman