First, lets break up the equation into pieces.
The first variable is slope, in your case here, we have a slope of -3 or -3/1.
The other variable is the y-intercept, which is where place on the graph where you plot (0,X), in your case here we got (0,-4). That is the y-intercept.
to graph it you have to plot the y-intercept, and then identify the slope.
Here is an example.
Answer: 97/20 or 4 17/20
Step-by-step explanation:
5/1 - 3/20 = 97/20, to an improper fraction gives 4 17/20
<span> x = 3y - 8
</span>
Plug this in for variable x in equation [2]<span>
</span><span><span> [2] 3•(3y-8) + 2y = 31
</span><span> [2] 11y = 55
</span></span>
Solve equation [2] for the variable y
<span><span> [2] 11y = 55</span>
<span> [2] y = 5</span> </span>
// By now we know this much :
<span><span> x = 3y-8</span>
<span> y = 5</span></span>
<span>// Use the y value to solve for x
</span>
<span> x = 3(5)-8 = 7 </span>Solution :<span><span> {x,y} = {7,5}</span>
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Answer:
(b)
Step-by-step explanation:
