Question

Classify as either a quadratic equation, a linear equation, or neither.

f(x) = x^2 + 2x + 3


Quadratic


Neither


Linear

Answer 1

every quadratic has one of the power of x as x^2

Answer 2

quad ans A

Answer 3

@eviI

Answer 4

no powers above 2 are valid in case of quadratic equations @keridavis

Answer 5

@RedNeckOutLaw

Answer 6

any function of the form y= ax^2 + bx +c is known as quadratic equation

Answer 7

So it's a??

Answer 8

why are u getting confused @keridavis

Answer 9

I have no idea. I'm lost

Answer 10

yeah !!!!

Answer 11

where are u getting lost

Answer 12

linear equations are usually in this form:
y = mx + b
quadratics: y = ax^2 + bx + c
exponential: y = a^x

Answer 13

Wouldn't it be linear???

Answer 14

of exponetial/

Answer 15

linear function is an equation of a line not any curve
y= mx + c is an equation of line and linear originate from line , x has power 1

Answer 16

@zepdrix

Answer 17

for any function to be an exponential a constant number has its power as x
example,
y = 2^x ,
y= 5 ^x ,
y = a^x where a is some constant like this @keridavis

Answer 18

i still think linear...

Answer 19

i told you what linear means linear means a line and equation of line is y = ax +b

Answer 20

yes so it shoudl be because it's x=x+4

Answer 21

while equations like y = ax^2 + bx +c are quadratic equations

Answer 22

what is x = x+4

Answer 23

f(x) equals the value of y

Answer 24

@keridavis

Answer 25

@SolomonZelman

Answer 26

and f(x) = x^2 + 2x + 3 =>
a=1, b=2, c=3 ,
satisfy it in f(x) = ax^2 + bx + c which means quadratic equation

Answer 27

@keridavis

Answer 28

\(\normalsize\color{blue}{ f(x) = x^2 + 2x + 3}\) is just like ax²+bx+c
So which option do you pick ?

Answer 29

I say Linear

Answer 30

and f(x) = x^2 + 2x + 3 =>
a=1, b=2, c=3 ,
satisfy it in f(x) = ax^2 + bx + c which means quadratic equation @keridavis

Answer 31

do you know little bit about graphs and curves @keridavis

Answer 32

@dan815

Answer 33

I am going to show you something

Answer 34

\(\normalsize\color{blue}{ f(x) = x^2 + 2x + 3}\)
\(\normalsize\color{blue}{ f(x) = x^2 + 2x +1 + 2}\)
\(\normalsize\color{blue}{ f(x) =(x+1)^2 + 2}\)

Answer 35

Parabola centered at \(\normalsize\color{blue}{ (-1,2)}\) opening up.

Answer 36

take the feel of quadratic @ keridavis what do you think this is ?

Answer 37

This isn't helping!!!!!

Answer 38

take a look at this figure @keridavis what can u figure out of this image///

Answer 39

@SolomonZelman please help me on this..

Answer 40

@keridavis why aren't u getting ....
do u know what linear means

Answer 41

Is ist linear or quad???

Answer 42

quadratic 101 %