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3 years ago

Can someone help me answer

Mathematics

2 answers:

GREYUIT [131]3 years ago

5 0

Answer:

Step-by-step explanation:

substitute x into the equation, so it would be...

$\frac{5^{2}-5 }{5-1}$

then solve the equation

Blababa [14]3 years ago

3 0

Answer:

Step-by-step explanation:

So x^2 means multiplyinng x by x.

x here is 5 so:

5 * 5= 25

Then 25 - 5 is 20.

Then x - 1

5 - 1 = 4

Thereafter 20 / 4 gives you 5.

5 is your final answer.

HOPE THIS HELPED

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X y

Darina [25.2K]

Answer:

Part 1) The rate of change is $\frac{17}{15}$

Part 2) The initial value is 68

Part 3) The function rule to the linear model is $y=\frac{17}{15}x+68$

Step-by-step explanation:

we know that

The linear equation in slope intercept form is equal to

$y=mx+b$

where

m is the slope or unit rate

b is the y-intercept or initial value

step 1

Find the slope

take two points from the table

(0,68) and (15,85)

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the values

$m=\frac{85-68}{15-0}$

$m=\frac{17}{15}$

In a linear function , the slope is the same that the rate of change

therefore

The rate of change is $\frac{17}{15}$

step 2

Find the y-intercept

we know that

The y-intercept is the value of y when the value of x is equal to zero

Looking at the table

For x=0, y=68

therefore

The y-intercept is

$b=68$

The y-intercept is also called the initial value

therefore

The initial value is 68

step 3

Determine the function rule to the linear model

$y=mx+b$

we have

$m=\frac{17}{15}$

$b=68$

substitute

$y=\frac{17}{15}x+68$

8 0

3 years ago

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Pachacha [2.7K]

Answer:

Step-by-step explanation:

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earnstyle [38]

Answer:

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Step-by-step explanation:

Let's represent p as pages and c as copies

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