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Zanzabum
2 years ago
7

F(x)=4x^2+2x-6.find the range of function f(x).

Mathematics
1 answer:
Triss [41]2 years ago
4 0

Answer:

y ≥ 6.25

Step-by-step explanation:

f(x)=4x²+2x-6

positive (4) leading coefficient, curve is left up and right up

x coordinate of vertex: x = - b/2a = - 2/2*4 = - 1/4  (-0.25)

y = 4*(-1/4)² + 2*(-1/4) - 6 = -6 1/4  (-6.25)  ... extreme

range: y ≥ - 6.25    [-6.25,∞)

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Insert brackets to make this calculation right 4x2+5-3=
pentagon [3]
Salutations!

Insert brackets to make this calculation right 4x2+5-3

The brackets should be inserted outside 2+5. If you add brackets outside teh rest of the numbers the calculation would not make sense.

4 × (2 + 5) - 3

Hope I helped (:

have a great day!
8 0
3 years ago
Use synthetic division to divide x^3+5x^2−9x−7 by x−2 1 5 -9 -7 The quotient is: _____ The remainder is: ______
RoseWind [281]

Answer:

 The quotient is x² + 6x +3

       Remainder  = -1      

 Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given Polynomial equation

   f(x) = x³+5x²−9x−7

By using synthetic division

 

 <em> x = 2  </em>         1       5       -9      -7

   <u>                   0       1       12     6</u>

  <u>                 1      6         3     </u><em><u> -1   </u></em><u>         </u>

 The quotient is x² + 6x +3

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5 0
3 years ago
What is the value of 12c3?
g100num [7]
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6 0
3 years ago
What is 6.84 in word form
alexandr402 [8]
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(Note, you don't say, "Six point eighty-four" As it doesn't sound correct.

Cheers.
5 0
3 years ago
Read 2 more answers
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Answer:

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Step-by-step explanation:

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P(Hearts) = \frac{13}{52}

Now, the probabily that the second card is a diamond is:

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The Probability that the first card is a heart and the second one a diamond is given by:

P(Hearts)×P(Diamond | First card is Heart)

= \frac{13}{52}\frac{13}{51}

= 6.37%

4 0
3 years ago
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