## Calabunga 2 years ago Solve the system by using a table. system (1 point) (–4, –3) (–3, –4) (4, 3) (3, 4)

1. Calabunga

2. Calabunga

I need help solving for y please! :)

3. BluFoot

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

4. Calabunga

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

5. BluFoot

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.

6. Calabunga

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

7. phi

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

8. phi

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

9. Calabunga

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

10. Calabunga

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

11. phi

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

12. Calabunga

y=-1x+7

13. phi

how did you get that?

14. Calabunga

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

15. phi

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

16. Calabunga

ahhhhhhhhhhhhhhhhhhhhhhhhh.

17. Calabunga

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

18. 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

19. Calabunga

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