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Marina CMI [18]
3 years ago
8

Can someone check my answer

Mathematics
1 answer:
Aleks [24]3 years ago
8 0
Your correct! That is the only answer that is responsible for that question!
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50Pts guys!!!! Please help me its easy!
mote1985 [20]

Answer:

c. f(x)=x(x+2)(x-1)(x-4)

Step-by-step explanation:

Where it says "as x goes to negative infinity" then "y goes to infinity" (that's the part with the infinity symbols) that means the graph is going up at it's left end. This curve is a quartic (4th degree) which means its left and right ends are kind of parabola-ish, but the middle is not the neat u-ish, v-ish shape of a parabola; it's more like a wonky, noodle-ish wavy affair. Anyway, LIKE a parabola when the beginning of the equation is positive, the two ends point up. That's what's happening here and so we can eliminate b. and d. as potential answers.

Since -2, 0, 1, 4 are zeros (which are solutions...and also x-intercepts) we can find the factors of the function.

If x = -2

ADD 2 to both sides.

x + 2 = 0

This means (x+2) is a factor.

This is enough info to select answer c. but let's verify the other factors.

If x = 1

SUBTRACT 1 from both sides.

x - 1 = 0

Thus means (x - 1) is a factor.

If x = 4

SUBTRACT 4 from both sides.

x - 4 = 0

(x - 4) is a factor.

You can see c. has all these factors as well as x, because x=0 already, so x is a factor too.

I think of this as a working backwards problem, bc usually you have to factor and solve. This one, you have solutions (which are zeros and x-intercepts) and work backwards to find factors and multiply them together to find the function.

5 0
2 years ago
The measures in degrees of the three angles of a triangle are given by 2x+1, 3x - 3 , and 9x. what is the measure of the smalles
olganol [36]
The answer would be b. 27
5 0
3 years ago
How can you find approximations of square roots?​
Likurg_2 [28]

Answer:

you can do a trial and improvement

Step-by-step explanation:

8 0
3 years ago
Factorise B square minus 25 ​
GuDViN [60]

Answer: (b+5)(b-5)

Step-by-step explanation:

both b^2 and 25 are square numbers, so square root both of them to give b and 5, then put into brackets with a + and -

3 0
3 years ago
The water cycle describes how water __ from the ocean ,plants ,animalas or waste
notsponge [240]

Answer:

evaporates

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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