All categories

4 years ago

Which function is quadratic function?

Mathematics

2 answers:

enyata [817]4 years ago

4 0

To be a quadratic equation, the first number has to be rasied by the power of 2.

The answer would be c(x) = -8x^2 + 3x-5

Sergeeva-Olga [200]4 years ago

3 0

Answer:

The correct option isC(x) -8x² + 3x - 5

Step-by-step explanation:

Quadratic function is a function that can be written as in the form of f(x) = ax² + bx + c, where a ≠ 0.

In a quadratic function, the greatest power of the variable is 2.

So, there is only one function from provided options which has greatest power is 2.

Hence, the correct option is C(x) -8x² + 3x - 5

You might be interested in

HELP!!!!I don’t get it. I need an explanation.

mestny [16]

Answer: 9 is -1

11 is -2 and 13 is -2

Step-by-step explanation:

5 0

3 years ago

Kevin’s grandfather left him 100 shares of Apple Inc. and 40 shares of Ford Motor Company. How much is his stock worth, assuming

umka2103 [35]

Answer:

Step-by-step explanation:

From the problem statement, we can create the following equation:

$T = 100A + 40F$

Where $T$ is the total worth of all shares, $A$ is the price of an Apple share, and $F$ is the price of a Ford share.

Plugging in the numbers from the problem statement, we get the following:

$T = 100(536) + 40(9.85)$

Multiplying these numbers out and adding them together will give you your answer.

3 0

4 years ago

Point M on line segment LN.Given MN= 2 and LM= 4. determine the length LN

Anna007 [38]

Answer:

what im imagining this line like is

L-----------M--------------N

Step-by-step explanation:

2+4=6

you didnt give a whole lot of info sorry if i got it wrong

3 0

3 years ago

A round barbecue pit is 2 meters in diameter. What is the distance around the barbecue pit? A) 12.56 meters. B) 18.84 meters. C)

Pani-rosa [81]

The formula for circumference is 2×pi × r

We are given the diameter of 2 meters which means the radius is 1 meter. We will use 3.14 for pi.

2 × pi × r =
2 (3.14)(1) =
6.28

The distance around the barbecue pit is

C. 6.28 meters

3 0

3 years ago

. Given ????(5, −4) and T(−8,12):

damaskus [11]

Answer:

a) $y=\dfrac{13x}{16}-\dfrac{129}{16}$

b) $y = \dfrac{13x}{16}+ \dfrac{37}{2}$

Step-by-step explanation:

Given two points: $S(5,-4)$ and $T(-8,12)$

Since in both questions,a and b, we're asked to find lines that are perpendicular to ST. So, we'll do that first!

Perpendicular to ST:

the equation of any line is given by: $y = mx + c$ where, m is the slope(also known as gradient), and c is the y-intercept.

to find the perpendicular of ST we first need to find the gradient of ST, using the gradient formula.

$m = \dfrac{y_2 - y_1}{x_2 - x_1}$

the coordinates of S and T can be used here. (it doesn't matter if you choose them in any order: S can be either x_1 and y_1 or x_2 and y_2)

$m = \dfrac{12 - (-4)}{(-8) - 5}$

$m = \dfrac{-16}{13}$

to find the perpendicular of this gradient: we'll use:

$m_1m_2=-1$

both $m_1$ and $m_2$ denote slopes that are perpendicular to each other. So if $m_1 = \dfrac{12 - (-4)}{(-8) - 5}$ , then we can solve for $m_2$ for the slop of ther perpendicular!

$\left(\dfrac{-16}{13}\right)m_2=-1$

$m_2=\dfrac{13}{16}$ :: this is the slope of the perpendicular

a) Line through S and Perpendicular to ST

to find any equation of the line all we need is the slope $m$ and the points $(x,y)$ . And plug into the equation: $(y - y_1) = m(x-x_1)$

side note: you can also use the $y = mx + c$ to find the equation of the line. both of these equations are the same. but I prefer (and also recommend) to use the former equation since the value of 'c' comes out on its own.

$(y - y_1) = m(x-x_1)$

we have the slope of the perpendicular to ST i.e $m=\dfrac{13}{16}$