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2 years ago

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Which of these graphs represents a rate of change of 4?

1 answer:

mamaluj [8]2 years ago

7 0

<h2><em>The last graph because the slope is 40. </em></h2><h2><em> </em></h2><h2><em>Slope equals rise over run </em></h2><h2><em> </em></h2><h2><em>Rise is 4/ Run is 1 </em></h2><h2><em> </em></h2><h2><em>4/1=4 </em></h2><h2><em> </em></h2><h2><em>Slope (rate of change)=4</em></h2><h2><u><em>C</em></u></h2>

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If the function graphed is f(x), find f(1).

Crazy boy [7]

Locate 1 on the x axis. This is the horizontal number line.

Draw a vertical line through 1 on the x axis. Extend this vertical line as far up and down as you can.

Notice how the vertical line crosses the blue curve. Mark this point. Then draw a horizontal line from this point to the y axis. The horizontal line will touch -4 on the y axis. So that means the point (1,-4) is on the curve.

If the input it is x = 1, then the output is y = -4

So that's why the answer is choice A

7 0

3 years ago

Please answer this with explanation. Please I really am struggling. I will mark you brainalist. Please solve it Please

Hatshy [7]

Answer:

13, 11, 4, 16, 6, 22

Step-by-step explanation:

<em>Let the second digit be x and the last digit be y</em>

Given:

Data set: 13, x, 4, 16, 6, y
Mean = 12
y = 2x or x = 2y

The mean of the data is the average. The average can be calculated by determining the sum of the terms and dividing it by the total digits.

$\implies \text{Mean of data:} \ \dfrac{13 + x + 4 + 16 + 6 + y}{6} = 12$

Let us substitute the value of y (2x) in the data.

$\implies \dfrac{13 + x + 4 + 16 + 6 + 2x}{6} = 12$

Now, add all the terms in the data and simplify.

$\implies \dfrac{39 + x +2x}{6} = 12$

$\implies \dfrac{39 + 3x}{6} = 12$

Distribute the denominators and simplify.

$\implies \dfrac{39}{6} + \dfrac{3x}{6} = 12$

$\implies \dfrac{13}{2} + \dfrac{x}{2} = 12$

$\implies 6.5 + \dfrac{x}{2} = 12$

Subtract 6.5 both sides and simplify.

$\implies 6.5 + \dfrac{x}{2} - 6.5 = 12 - 6.5$

$\implies \dfrac{x}{2} = 5.5$

Use cross multiplication and simplify.

$\implies x= 5.5 \times 2$

$\implies x= 11$

To determine the value of "y", simply substitute the value of "x" into the expression that represents the value of "y".

$\implies y = 2x$

$\implies y = 2(11)$

$\implies y = 22$

When the x and y values are substituted in the data, we get;

⇒ 13, 11, 4, 16, 6, 22

Therefore, the data is 13, 11, 4, 16, 6, 22.

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2 years ago

Phred has already graded 40 papers and he still needs to grade more. Write an equation for how many papers he is grading if he c

vladimir2022 [97]

y=4x+40

x represents the number of minutes

y is the total

40 because he already graded 40 papers, and 4x because that's how many phred grades times the number of minutes

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3 years ago

A combination lock has four wheels in a row. Each wheel has the digits from 0 to 9 on it. How many different combinations are th

sattari [20]

Answer:

Step-by-step explanation:

a.10^4=10000

b.10×9×8×7=5040

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2 years ago

Solve for me. 6= (y+2)

Rama09 [41]

Answer:

y=4

Step-by-step explanation:

if y+2=6, you can subtract 2 from both sides, giving you y=6-2. 6-2=4, which is y.

6 0

3 years ago

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