5x-y=7
1 answer:
Answer:
see graph of y = 5x - 7
Step-by-step explanation:
If graphing is the task, you should rewrite the equation in a y = ax + b form. All straight lines can be described in this form, only the a and b determine which line it is.
Your equation 5x-y=7 has the 5x on the left side, so lets move it to the right. It will get a negative sign (this is the same as subtracting 5x like you did in your picture)
5x - y = 7
-y = 7 - 5x
Now we still have the -y which should be a +y. So we multiply left and right with -1 and get:
y = -7 + 5x
If we swap the -y and 5x (we can, because they are just an addition), we get:
y = 5x - 7
Now the equation is in its "normal" form. It's like the y = ax + b with a and b chosen as a=5 and b=-7.
The normal form is handy because you can immediately see the slope is 5 and the intersection with the y-axis is at y=-7.
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Answer:
1.922 miles is equivalent to 3.1 kilometers.
Step-by-step explanation:
Given:
1 km = 0.62 miles.
3.1 km = ? miles
Now, in order to find the number of miles equivalent to 3.1 km, we use unitary method with the help of the conversion factor.
From the conversion factor, we can conclude that kilometer is a smaller unit compared to that of mile.
So, conversion factor =
The formula to transform 'n' kilometers to miles is given as:
Therefore, 3.1 km =
3.1 km = miles
Therefore, 1.922 miles is equivalent to 3.1 kilometers.