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The curve above is the graph of a degree 3 polynomial. It goes through the point (5,−6.3). what is the polynomial please? image attached
 one year ago
 one year ago
The curve above is the graph of a degree 3 polynomial. It goes through the point (5,−6.3). what is the polynomial please? image attached
 one year ago
 one year ago

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SerikMBBest ResponseYou've already chosen the best response.0
a sum of several terms produces a polynomial
 one year ago

BrenoBest ResponseYou've already chosen the best response.0
i dont get what you mean
 one year ago

SerikMBBest ResponseYou've already chosen the best response.0
look at this http://www.mathsisfun.com/algebra/polynomials.html
 one year ago

SerikMBBest ResponseYou've already chosen the best response.0
here it is ax^3+bx^2+cx+d
 one year ago

SerikMBBest ResponseYou've already chosen the best response.0
using the graph u should find a, b, c and d
 one year ago

SerikMBBest ResponseYou've already chosen the best response.0
is it the right graph?
 one year ago

SerikMBBest ResponseYou've already chosen the best response.0
x intercepts here are 2 and 2
 one year ago

cwrw238Best ResponseYou've already chosen the best response.1
as you can see from the graph another 2 points through which it passes are (0,2) and (0,2)
 one year ago

satellite73Best ResponseYou've already chosen the best response.1
this one has a zero at \(2\) and a zero at \(2\) with multiplicity 2
 one year ago

cwrw238Best ResponseYou've already chosen the best response.1
sorry i mean (2,0) and (2,0)
 one year ago

satellite73Best ResponseYou've already chosen the best response.1
making it \[a(x+2)(a2)^2\] and your last job is to find \(a\)
 one year ago

satellite73Best ResponseYou've already chosen the best response.1
since you know it goes through \((5,6.3)\) replace \(x\) by \(5\), set the result equal to \(6.3\) and solve for \(a\)
 one year ago

satellite73Best ResponseYou've already chosen the best response.1
i am not sure, however, how you know it goes through that point, because it doesn't really look like it
 one year ago

satellite73Best ResponseYou've already chosen the best response.1
no, you need to solve for \(a\)
 one year ago

satellite73Best ResponseYou've already chosen the best response.1
replace \(x\) by \(5\) not by \(a\)
 one year ago

satellite73Best ResponseYou've already chosen the best response.1
\[ 6.3=a(5+2)(52)^2\]
 one year ago

satellite73Best ResponseYou've already chosen the best response.1
\[6.3=7\times 9 a\] etc
 one year ago

BrenoBest ResponseYou've already chosen the best response.0
so ax^3+bx^2+cx+d how do i fit all this into this format
 one year ago

cwrw238Best ResponseYou've already chosen the best response.1
expand 0.1(x +2)(x  2)^2
 one year ago

BrenoBest ResponseYou've already chosen the best response.0
0.1x^3 + 0.2x^2 + 0.4x  0.8???
 one year ago

BrenoBest ResponseYou've already chosen the best response.0
The curve above is the graph of a degree 4 polynomial. It goes through the point (5,−202.5). Find the polynomial
 one year ago

cwrw238Best ResponseYou've already chosen the best response.1
satellite confused me at first when in his 2nd post he typed a instead of x. he made a human error which we all can make sometimes.
 one year ago

cwrw238Best ResponseYou've already chosen the best response.1
this can be dome in similar way to the first curve there are zeros at =4 and 2 and at x=0 with duplicity 2
 one year ago

cwrw238Best ResponseYou've already chosen the best response.1
so we can write a(x+4)(x  2)(x 0)^2 or ax^2(x+4)(x2)
 one year ago

cwrw238Best ResponseYou've already chosen the best response.1
can you continue from here?
 one year ago

cwrw238Best ResponseYou've already chosen the best response.1
you now need to use x = 5 y = 202.5
 one year ago

cwrw238Best ResponseYou've already chosen the best response.1
202.5 = 25a * 9 * 3 = 202.5 / (25*27)
 one year ago

cwrw238Best ResponseYou've already chosen the best response.1
so you need to expand 0.3 x^2(x + 4\)(x  2)
 one year ago
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