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3 years ago

10

Calculate the slope of a line the -1,2 and 0,8

2 answers:

krok68 [10]3 years ago

4 0

$\bf (\stackrel{x_1}{-1}~,~\stackrel{y_1}{2})\qquad (\stackrel{x_2}{0}~,~\stackrel{y_2}{8}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{8}-\stackrel{y1}{2}}}{\underset{run} {\underset{x_2}{0}-\underset{x_1}{(-1)}}}\implies \cfrac{6}{0+1}\implies 6$

Aleksandr [31]3 years ago

4 0

Answer:

m = 6

Step-by-step explanation:

8-6 = 6

0-(-1)= 1

6/1 = 1

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Anaya makes 14 baskets during her game. Some of these baskets were worth two points and others were worth three points. In total

Valentin [98]

Answer:she made 12 two points basket.

Step-by-step explanation:

Let x represent the number of baskets that were worth two points.

Let y represent the number of baskets that were worth three points.

Anaya makes 14 baskets during her game.

This means that

x + y = 14

Some of these baskets were worth two points and others were worth three points. In total she scored 30 points. His means that

2x + 3y = 30 - - - - - - - - - -1

Substituting x = 14 - y into equation 1, it becomes

2(14 - y) + 3y = 30

28 - 2y + 3y = 30

- 2y + 3y = 30 - 28

y = 2

Substituting y = 2 into x = 14 - y, it becomes

x = 14 - 2

x = 12

7 0

3 years ago

Solve for x: -3(x+3)=-3(x+1)-5

masya89 [10]

-3(x+3)=-3(x+1)-5
-3x-9=-3x-3-5
-3x-9=-3x-8
The question has no solution

3 0

3 years ago

Find the inverse f(x)=6x+7

Lorico [155]

Answer:

$f^{-1}$ (x) = $\frac{x-7}{6}$

Step-by-step explanation:

let y = f(x) , then rearrange making x the subject

y = 6x + 7 ( subtract 7 from both sides )

y - 7 = 6x ( divide both sides by 6 )

$\frac{y-7}{6}$ = x

Change y back into terms of x with x = $f^{-1}$ (x) , then

$f^{-1}$ (x) = $\frac{x-7}{6}$

7 0

2 years ago

I need help!!!! <br> Which represents the inverse of the function f(x)=4x?

Mrac [35]

Answer:

$h(x)=\frac{1}{4}x$ .

Step-by-step explanation:

The inverse is basically you just swapping x and y. People want to solve it for y to make it a function of x.

$y=4x$

Swap x and y:

$x=4y$

Now solve for y by dividing y on both sides:

$\frac{x}{4}=y$

$\frac{1}{4}x=y$

$y=\frac{1}{4}x$ .

4 0

2 years ago

Cornelius is building a solar system model. He plans on making a circular ring around one of the planets out of wire. He wants t

astra-53 [7]

Answer:

$C = 2\pi r$

$C = \pi d$

Step-by-step explanation:

Given

A circular ring

Required

The length

Let

$r \to$ the radius of the ring

The length is calculated by calculating the circumference of the ring.

This is calculated using:

$C = 2\pi r$

or

$C = \pi d$

Where

$d \to$ diameter

and $d = 2r$

6 0

3 years ago