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I have this problem which I have really tried to do by my self, but I just cannot figure it out. Can someone please help me find the answers and please show me how to do it? THANKS SO MUCH!

***Complete the table of values

5x-4y=20

X Y
0 __
__ 0
-4 __
__ -4

I could not get a graph to paste on here. Sorry if it is confusing looking.

2007-09-15 14:35:06 · 7 answers · asked by Hope08 2 in Science & Mathematics Mathematics

7 answers

If x = 0, then 5(0) - 4y = 20; 0 - 4y = 20; -4y = 20; y = -5.
If y = 0, then 5x - 4(0) = 20; 5x - 0 = 20; 5x = 20; x = 4.
That fills in the first 2 values on the t-chart: (0,-5) and (4,0)
Do the same with x = -4 and y = -4 separately.

2007-09-15 14:42:26 · answer #1 · answered by ccw 4 · 0 0

You have to substitute the value given in table of values in equation 5x-4y=20.
If x=0 ; then 5(0)-4y=20
0-4y=20
y=20/-4
y=-5.

If y=0 ; then 5x-4(0)=20 , and so on.
5x-0=20
5x=20
x=20/5=4

2007-09-15 14:47:51 · answer #2 · answered by vega 2 · 0 0

Just fill in the equation with the values. ex:

X Y
--------
0 ?

5(0)-4y=20
-4y = 20
/-4 /-4
y= -5

X Y
--------
0 -5

2007-09-15 14:42:56 · answer #3 · answered by Katy 2 · 0 0

You just need to substitute the values given into the original equation.
X=0
5(0) - 4y =20
0-4y=20
y=-5
(0,-5)

Just substitute like shown for the rest.

Where the give you a y-value, just substitute the value given for y. Example

Y=0
5x-4(0)=20
5x=20
x=4

Hope this helps!

2007-09-15 14:41:24 · answer #4 · answered by Anonymous · 1 0

5x-4y = 20
-4y = 20 - 5x
y = 5/4 x - 5 (slope intercept form slope is 5/4)


0, -5
4,0
-4,25
4/5 , -4

2007-09-15 14:45:00 · answer #5 · answered by Will 4 · 0 0

0, -5
4, 0
-4, -10
(4/5), -4

2007-09-15 14:41:05 · answer #6 · answered by cartonboy 2 · 0 0

hi pal this an consumer-friendly question per linear equations you need to use transposition technique in this technique while a term is transfered from one facet to different its sign will become opposite answer: x+4-7x=22 =4-7x=22-x (right here x comes from the left facet its sign variations) =4=22-x+7x(right here 7x comes from the left facet its sign variations) =4-22=6x(same) =-18=6x x=-18/6 =-3 Bye Bye!!!!!!!!!!!!!!!!!!!!!!

2016-11-15 08:19:18 · answer #7 · answered by Anonymous · 0 0

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