F.y=(x-1)(x-2)
H.y=3x-x2
G.y=x2 + 2x-3
I.-x2 +x(x-3)
2007-03-16 01:37:58 · 10 answers · asked by ceomillionman 1 in Science & Mathematics ➔ Mathematics
A function is a quadratic function if it can be expressed in the form y = ax^2 + bx + c for a non-zero value for a.
F) is a quadratic function, because it can be expressed as
y = (x - 1)(x - 2) = x^2 - 3x + 2
H) is a quadratic function, because
y = 3x - x^2
y = -x^2 + 3x
G) is a quadratic function, because
y = x^2 + 2x - 3
I) is NOT a quadratic function, because it is missing a y.
2007-03-16 01:41:41 · answer #1 · answered by Puggy 7 · 0⤊ 1⤋
x^2 + x -12 Now discover 2 numbers such that their product is -12 and their sum is +a million How do you do this? answer is - discover the finest elements of 12 making use of the LCM calculation technique So 12 = 2 * 2 * 3 From right here you've the probabilities as 2 and 2*3 i.e. 2 and six 2*2 and three i.e. 4 and three the version of two & 6 is two so that's ruled out the version of four & 3 is a million so this can artwork for us Having gotten that note that product is unfavourable (-12) in spite of the undeniable fact that the version is effective ( +a million) So easily one of four and three should be unfavourable and the different effective 4 receives to be effective and three as unfavourable because the version may then be +a million So we get +4 and -3 we are able to rewrite the quadratic function as x^2 +4x - 3x - 12 = x(x+4) -3(x+4) = (x-3)(x+4) those are your elements and thats your answer. its all extremely undemanding . i'm particular that once you re study the financial ruin in the e book from the starting up you'd be draw close at it your self after a touch practice. sturdy success.
2016-12-02 02:16:41 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Ans: I.
-x^2+x^2-3x= -3x
not quadratic
2007-03-16 01:41:40 · answer #3 · answered by Maths Rocks 4 · 0⤊ 0⤋
I would say (I) as when multiplied out you have-:
-X^2 + X(X - 3)
-X^2 + X^2 - 3x
3x
y = 3x is a linear function
2007-03-16 01:43:38 · answer #4 · answered by Doctor Q 6 · 0⤊ 0⤋
I.
quadratic has to be in the form of
f(x)= ax^2 +bx+c
when I is simplified it is -3x
2007-03-16 01:42:00 · answer #5 · answered by Anonymous · 0⤊ 0⤋
A quadratic function is one of the form f(x) = ax2 + bx + c, where a, b, and c are numbers with a not equal to zero...answer "I" is not a quadratic function.
2007-03-16 01:43:03 · answer #6 · answered by Courtney 3 · 0⤊ 0⤋
the one -x^2+x(x-3) is not quadratic
2007-03-16 01:42:39 · answer #7 · answered by raj 7 · 0⤊ 0⤋
I guess I. because there is no equality statement. Also, the x^2 goes away.
2007-03-16 01:42:42 · answer #8 · answered by Jack 2 · 0⤊ 0⤋
(i)-x2 +x(x-3)
ans =3x
2007-03-16 01:42:09 · answer #9 · answered by suda m 2 · 0⤊ 0⤋
-x² + x² - 3x = 3x is not quadratic.
ANSWER I
2007-03-16 01:49:26 · answer #10 · answered by Como 7 · 0⤊ 0⤋