Answer:
469.666666667
Step-by-step explanation:
This was, of course, looked up on google.
The correct answer is 10x³-10x
the place value of the 9 is the ten thousandths
Answer : option B
![f(x) = 3x^3 + 10x^2 + 4x - 8](https://tex.z-dn.net/?f=f%28x%29%20%3D%203x%5E3%20%2B%2010x%5E2%20%2B%204x%20-%208)
We have -2 in the given option
Lets use synthetic division and divide by -2
First write the coefficient of all the terms in f(x)
-2 3 10 4 -8
0 -6 -8 8
------------------------------------------------------
3 4 -4 0
We got remainder =0 , so -2 is one of the zero
Resultant expression is 3x^2 + 4x -4
Lets use synthetic division and divide by -2 again
-2 3 4 -4
0 -6 4
------------------------------------------------------
3 -2 0
We got remainder =0 , so -2 is again a zero
Resultant expression is 3x - 2
we set 3x -2 =0
Add 2 on both sides
3x = 2
Divide by 3 on both sides
![x = \frac{2}{3}](https://tex.z-dn.net/?f=x%20%3D%20%5Cfrac%7B2%7D%7B3%7D)
So zeros are ![-2, \frac{2}{3}](https://tex.z-dn.net/?f=-2%2C%20%5Cfrac%7B2%7D%7B3%7D)
Answer:
(a) no
(b) -1, (2, -1)
(c) 4, (4, 7)
(d) no
Step-by-step explanation:
<h3>(a)</h3>
You can check by using x=3 in the function.
f(3) = 4(3) -9 = 12 -9 = 3 . . . . not -3
The point (3, -3) is not on the graph.
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<h3>(b)</h3>
Put x=2 into the function and evaluate:
f(2) = 4(2) -9 = 8 -9
f(2) = -1
The point (2, -1) is on the graph.
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<h3>(c)</h3>
Put f(x) = 7 into the equation and solve for x.
7 = 4x -9
16 = 4x
4 = x
The point (4, 7) is on the graph.
__
<h3>(d)</h3>
no, see part (b)