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N76 [4]
2 years ago
11

Which equation represents the function? f(x)=−1/2x+4 f begin argument x end argument equals negative fraction 1 over 2 end fract

ion x plus 4 f(x)=2x+12 f begin argument x end argument equals 2 x plus 1 half f(x)=4x−2 f begin argument x end argument equals 4 x minus 2 f(x)=−2x+4
Mathematics
1 answer:
PolarNik [594]2 years ago
4 0

The equation that represents the function is y = -x - 1

<h3>How to determine the equation of the function?</h3>

The complete question is added as an attachment

From the table of values, we have the following points

(x, y) = (-1,0) and (0,-1)

Calculate the slope (m) using

m = (y2 - y1)/(x2 - x1)

Substitute the known values in the above equation

m = (-1 -0)/(0 + 1)

Evaluate the exponent

m = -1

The equation is then calculated as:

y = mx + c

This gives

y = -x + c

Using the point (0,-1), we have:

0 = 1 + c

Solve for c

c = -1

So, we have

y = -x - 1

Hence, the equation that represents the function is y = -x - 1

Read more about linear functions at:

brainly.com/question/1884491

#SPJ1

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Which relation is a function​
erma4kov [3.2K]

Answer:

Top left one on the attached, must be option A

Step-by-step explanation:

A function has to have unique input values and for each input value has to have an output value.

Analyzing the graphs we can see that only one of them is a function- top left one

All the others have repeat input values, therefore are not functions

All those points marked with red circle

<em>Refer to attached </em>

8 0
3 years ago
C. None of the above <br> D.translation
Over [174]

C) None of the above

The transformation is not a reflection because the image is not an exact reflection. It is a little bit tilted.

The transformation is not a rotation because the image is not in the same place as the original.

The transformation is not a translation because the image was altered in some way, by being tilted.

7 0
3 years ago
A store purchased a DVD for $12.00 and sold it to a customer for 50% more than the purchase price. the customer was charged a 7%
tekilochka [14]

Answer:

19.26

Step-by-step explanation:

method 1 -

original cost - 12

sell cost - 12×1.5×1.07 =19.26 answer

method 2-

original cost - 12

sell cost increase by 50 % = 12+ 6 = 18

tax 7 % = 18×7/100 = 1.26

total cost = 18+1.26 = 19.26

4 0
3 years ago
What is the value of this expression when x = -1 and y = 2? <br><br>4x³y²
Musya8 [376]
Substituting in you get 4(-1)^3 * (2)^2. -1 cubed is -1 and 2 squared is 4. So you get -4*4 = -16 as your answer.
4 0
3 years ago
Solve the logarithmic equation. Show steps
Morgarella [4.7K]

\begin{array}{llll} \textit{Logarithm of rationals} \\\\ \log_a\left( \frac{x}{y}\right)\implies \log_a(x)-\log_a(y) \end{array}~\hfill \begin{array}{llll} \textit{Logarithm Cancellation Rules} \\\\ log_a a^x = x\qquad \qquad \underset{\stackrel{\uparrow }{\textit{let's use this one}}}{a^{log_a x}=x} \end{array} \\\\[-0.35em] ~\dotfill

\log_4(x+10)-\log_4(x-2)=\log_4(x)\implies \log_4\left( \cfrac{x+10}{x-2} \right)=\log_4(x) \\\\\\ \stackrel{\textit{exponentializing both sides}}{4^{\log_4\left( \frac{x+10}{x-2} \right)}=4^{\log_4(x)}}\implies \cfrac{x+10}{x-2}=x\implies x+10=x^2-2x \\\\\\ 10=x^2-3x\implies 0=x^2-3x-10 \\\\\\ 0=(x-5)(x+2)\implies x= \begin{cases} 5~~\checkmark\\ -2 \end{cases}

notice, -2 is a valid value for the quadratic, however, the argument value for a logarithm can never 0 or less, it has to be always greater than 0, so for the logarithmic expression with (x-2), using x = -2 will give us a negative value, so -2 is no dice.

4 0
2 years ago
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