Addy is taking a test with multiple choice and True/False questions. On the test, Addy got a total of twenty questions correct.
Addy gets five points for correct multiple-choice answers and one point for each correct True/False answer. She earned 76 points on the test. How many multiple-choice questions and how many True/False questions did Addy get correct?
Use 2 equations to find your answer
Use 2 equations to find your answer
2 answers:
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The zeros of given function is – 5 and – 3
<u>Solution:</u>
We have to find the zeros of the function by rewriting the function in intercept form.
By using intercept form, we can put value of y as to obtain zeros of function
We know that, intercept form of above equation is
Taking “x” as common from first two terms and “3” as common from last two terms
x (x + 5) + 3(x + 5) = 0
(x + 5)(x + 3) = 0
Equating to 0 we get,
x + 5 = 0 or x + 3 = 0
x = - 5 or – 3
Hence, the zeroes of the given function are – 5 and – 3