2 years ago

Im having trouble with my homework can u tell me what is x=3y

2 answers:

8 0

Y=3xx=3yIf you sub for y:x = 3*3x1 = 9
There's no solution possible other than x and y are zero.x = 3*3xx = 9x8x = 0x = 0y = 0<span>If you graph these, you get 2 straight lines that intersect at the origin (0,0)</span>

viktelen [127]2 years ago

4 0

That's an equation that describes a linear and proportional relationship between 'x' and 'y'. The graph of that equation is a straight line through the origin whose slope is. 1/3 .

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Expand to write an equivalent expression <br> -1/4 (-8x + 12y)

Tanzania [10]

The equivalent expression on expanding -1/4 (-8x + 12y) is 2x - 3y

<h3>Expansion of expression</h3>

Expansion of expression can be carried out using the distributive rule a shown:

A(B + C) = AB + AC

Note that <u>A is distributed over B and C</u>
Given the expression

-1/4 (-8x + 12y)

-1/4(-8x) - 1/4(12y)

2x - 3y

Hence the equivalent expression on expanding -1/4 (-8x + 12y) is 2x - 3y