Mathematics, 19.07.2019 00:30 brookesquibbs

Will mark as brainliest. which statements are true about the polynomial function? f(x)=x^3−x^2−4x+4 select each correct answer. explain your answer. f(x)=0 when x=−1 . f(x) divided by (x−1) has a remainder of 0. (x−1) is a factor of f(x) . f(−1)=0

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Answer from: mads000

Is "f(x)=0 when x=−1" true or not? To answer this, use synth. div. with -1 as the divisor. Is the remainder 0? If yes, then -1 is a root and f(-1) = 0.

Setting up synth. div.:

-1 / 1 -1 -4 4
-1 2 2

1 -2 -2 6 The remainder is 6, so -1 is not a root, and f(x) does
not equal 0 when x = -1.

"f(x) divided by (x−1) has a remainder of 0." Again, set up synth. div., this time with divisor +1:

1 / 1 -1 -4 4
1 0 -4

1 0 -4 0 The remainder is 0, so 1 is a root and x-1 is a
factor.

Answer from: Quest

step-by-step explanation:

hello and welcome!

so, when we see the words "proportional" along with a table, we need to know that we're looking numbers that divide by the same thing.

looking at this table, we simply have to do a trial and error, and divide to see which numbers have the same quotient. if you look at choice a & c, they both have equal quotients for three of the numbers, with one exception, so those can't be the answer. looking at b, there is no similarity, so that can't be it. then, we see d; if you divide all the numbers in the table, you'll see that they all divide by two, which is a proportional relationship, and our answer!

$4/2 = 2\\7/3.5=2\\8/4=2\\10/5=2$

also, always remember that the x will always be the number that goes into y, and somewhere behind this table, is a formula. for this specific table, the formula would be:

$y=\frac{x}{2}$

since our x-value is being divided by two to get the y-value. and if they were to ask for more numbers in the series, this is the formula you would use to find them.

Answer from: Quest

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads

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Will mark as brainliest. which statements are true about the polynomial function? f(x)=x^3−x^2−4x+4...