Maybe one of the easier ways to work this is to write the equation of the line through the points you know, then use that to find the point you don't know. The 2-point formula for a line is ...
... y = (y2 -y1)/(x2 -x1)·(x -x1) +y1
Filling in (x1, y1) = (3, 213) and (x2, y2) = (8, 568), you get ...
... y = (568 -213)/(8 -3)·(x -3) +213
... y = 71(x -3) +213 . . . . . . simplified a bit
Now, for x=5, the value of <em>a</em> is ...
... a = 71(5 -3) +213 = 142 +213 = 355
The value of <em>a</em> that results in a constant rate of change is 355.
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The equation can actually be simplified further to ...
... y = 71x
Answer: Option 'B' is correct.
Our net price will be $3357.21.
Explanation:
Since we have given that
The list price of set of saws = $3800
There are 3 successive discounts :
8%,3%,1%
So, if we apply first for 8% discount our new price becomes,
Now, if we apply 3% on our deducted price , our new price becomes ,
Now, we'll apply for 1% on our new deducted price , our net price becomes,
Hence, our net price will be $3357.21.
Therefore, Option 'B' is correct.