Table:
x 0,1
y -2,0
Graph is the attached image.
2 is in the hundred thousands place
First, you need to isolate the x in the first equation.
-x + 5y = 1
Subtract 5y from both sides, leaving you with the following equation:
-x = 1-5y
Because you are trying to solve for positive x and not negative x, you need to make x positive. Therefore you divide both sides by -1. In Algebra, when 1 is the coefficient of the variable, it is not shown, but it is still there. The new equation will be the following: x = 5y-1
Now you just need to substitute the x within the second equation for the x equation we just solved for.
Therefore, the right answer will be 2(5y-1)+4y= -4. Now, all you have to do is choose the answer that states exactly that, which is the first choice.
The value of y when the value of x is 8 is 87
<h3>Function and values</h3>
Functions are equation expressed in terms of variables. Given the expression below;
y = 10x + 7
If the value of x is 8, then on substituting, we will have:
y = 10(8) + 7
y = 80 + 7
Simplify
y = 87
Hence the value of y when the value of x is 8 is 87
Learn more on function and values here: brainly.com/question/10439235
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