Respuesta :

Answer:

7.  x = -4/3 x + 8

8.  see graph

Step-by-step explanation:

7.  4x+3y = 24

We need to get this in slope intercept form  ( y= mx+b)

Subtract 4x from each side

4x-4x+3y = -4x+24

3x = -4x+24

Divide each side by 3

3x/3 = -4x/3 +24/3

x = -4/3 x + 8

The slope is -4/3 and the y intercept is 8


8.  8x -2y =4

We need to get it in slope intercept form  ( y= mx+b)

Subtract 8x from each side

8x-8x -2y = -8x+4

-2y = -8x+4

Divide by -2

-2y/-2 = -8x/-2 +4/-2

y = 4x-2

The slope is 4 and the y intercept is -2

Start at the origin and go down 2 units.  This is the y  intercept of (0,-2)  Then the slope is 4  (4/1)  Go up 4 and to the right 1.  Plot a point.  Go up 4 and to the right 1.  Connect the points and that is the line

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