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- anonymous

Solve the system by using a table.
system
(1 point)
(–4, –3)
(–3, –4)
(4, 3)
(3, 4)

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- anonymous

Solve the system by using a table.
system
(1 point)
(–4, –3)
(–3, –4)
(4, 3)
(3, 4)

- katieb

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- anonymous

- anonymous

I need help solving for y please! :)

- anonymous

solve for 4x in the top equation and substitute that in to the second equation

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- anonymous

I need to get two y=mx+ b equations, so i can graph them. i'm doing the equation wrong.

- anonymous

Oh sure, that's another way. Just solve for y in both equations then.
In the top one, divide by 3 on both sides.
In the bottom one, add 4x on both sides then divide by -4 on both sides.

- anonymous

Do you divide both the slope and b/y intercept by the -4 and 3?

- phi

for the 1st equation
3y= 4x+7
divide both sides by 3 (that means all terms are divided by 3)
\[ \frac{\cancel{3}y}{\cancel{3}}= \frac{4x+7}{3} \]
\[ y= \frac{4}{3}x + \frac{7}{3} \]

- phi

for the 2nd equation, first add +4x to both sides
then divide both sides by -4

- anonymous

That's what i got, but i started pluging number in to get one of the options, nothing worked...

- anonymous

could you please try plugging numbers in to find one of the options at the top? or give me numbers to plug in please?

- phi

ok, but first, what did you get for the 2nd equation?

- anonymous

y=-1x+7

- phi

how did you get that?

- anonymous

by adding -4x to the other side, then dividing by -4; y=4x+28/-4; y=-1+7

- phi

looks good except 28/-4 is not +7
you should get
y= -1x - 7

- anonymous

ahhhhhhhhhhhhhhhhhhhhhhhhh.

- anonymous

but how do i get one of the options above? like what numbers should i put in the equations????

- phi

you have 2 equations
y= (4/3)x + 7/3
and
y = -x -7
one way to find where they meet is sketch the lines to get an idea where they cross
or pick some numbers for x and find y

- anonymous

gahhhhhhhhhhhhhhhhhhhhh, i tried that, for some reason it's not workingg:(

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