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ninaaforever
22.01.2020 •
Mathematics
What are the zeros of the quadratic function f(x) = 2x2 + 8x – 3? x = –2 – startroot startfraction 11 over 2 endfraction endroot and x = –2 + startroot startfraction 11 over 2 endfraction endroot x = –2 – startroot startfraction 7 over 2 endfraction endroot and x = –2 + startroot startfraction 7 over 2 endfraction endroot x = 2 – startroot startfraction 11 over 2 endfraction endroot and x = 2 + startroot startfraction 11 over 2 endfraction endroot x = 2 – startroot startfraction 7 over 2 endfraction endroot and x = 2 + startroot startfraction 7 over 2 endfraction endroot
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Ответ:
The zeros are
Step-by-step explanation:
we have
we know that
The formula to solve a quadratic equation of the form
is equal to
in this problem we have
Equate the function to zero
so
substitute in the formula
therefore
Ответ:
slope is 2 y-intercept is 1
Step-by-step explanation:
Im big brain gang