A nurse has a gross income of $1200. And net income of $950 per week. What is the percentage deductions per week
1 answer:
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Here the line passes through (0,0) and (1,3).
First we need to find the slope , and for that we need to use the following formula
On substituting the values from the point, we will get
Now we will use slope intercept form, which is
Where m is the slope and b is the y intercept
And on substituting the values of x and y from the point (1,3) and slope, m = 3, we will get
b =0
Substituting the values of m and b in the slope intercept form, we will get
Remember that to find the zeroes of a quadratic expression of the form 
we could either factor it or use the quadratic formula. When 
, like in our case, is often way easier and faster factor the expression than using the quadratic formula. The only thing we need to do to factor the expression is find tow number whose product is 48 and its sum is 14; those numbers are 6 and 8. 
and 
. Now we can factor our quadratic like follows:
Since we are trying to find the zeroes of the function, we are going to set each one of our factored binomial equal to zero and solve for x:
and
We can conclude that the zeroes of the function
are and .
Since we are trying to find the zeroes of the function, we are going to set each one of our factored binomial equal to zero and solve for x:
and
We can conclude that the zeroes of the function