Question 112143
which of the ordered pairs (-3,3) (9,0) (-3,-3)(-23,8)are solutions for the equations x+4y=9?
You would need to try each of the ordered pairs and see which fit the equation;
(-3)+4(3)=9
-3+12=9 -- this works
(9)+4(0)=9
9=9 -- yes
(-3)+4(-3)=9
-3+(-12)=9 -- no
(-23)+4(8)=9-23+32=9  -- yes
which graph would represent 3x+2y=6
put this in slope-intercept frm;
2y=-3x+6
{{{y=(-3/2)x+3}}}
Now graph;
{{{graph (400,400, -5,5,-5,5, (-3/2)x+3)}}}
divide write  the results in simplest form  9/10 divided 12/5 =
{{{(9/10)/(12/5)}}}
{{{(9/10)*(5/12)=45/120=9/24=3/8}}}
divude write tge results  in simplest form 31/5 divided 2 2/3 =
{{{(31/5)/2(2/3)}}}
{{{(31/5)/(8/3)}}}
{{{(31/5)*(3/8)=93/24=2(3/45)=2(1/15)}}}
add  4 1/3+5 1/3 =9 2/3
:)