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3 years ago

What is the point-slope form

Mathematics

1 answer:

sertanlavr [38]3 years ago

5 0

Answer:

Point-slope is the general form y-y₁=m(x-x₁) for linear equations. It emphasizes the slope of the line and a point on the line (that is not the y-intercept). Watch this video to learn more about it and see some examples. Created by Sal Khan.

Step-by-step explanation:

pls give me brainless

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Determine whether the equation defines y as a function of x. x+y=9 and x^2+y^2=1 and x=y^2

Murrr4er [49]

Answer:

Function: $x+y=9$

Not Function: $x^2+y^2=1$ and $x=y^2$

Step-by-step explanation:

Given

$x+y=9$

$x^2+y^2=1$

$x=y^2$

Required

Determine if $y$ is a function of $x$

Solving x+y=9

$x+y=9$

Make y the subject of formula

$y = 9 - x$

Hence; y is a function of x

Solving $x^2+y^2=1$

$x^2+y^2=1$

Subtract x² from both sides

$y^2=1 - x^2$

Square root of both sides

$y =\± \sqrt{1 - x^2}$

This implies that

$y =\sqrt{1 - x^2}$ or $y =-\sqrt{1 - x^2}$

Because $y$ can be any of those two expressions, it is not a function.

Solving $x=y^2$

$x=y^2$

Reorder

$y^2 = x$

Take square roots

$y = \±\sqrt{x}$

This implies that

$y = \sqrt{x}$ or $y = -\sqrt{x}$

Because $y$ can be any of those two expressions, it is not a function.

4 0

3 years ago

The formula d = rt can be used to calculate the distance (d) an object travels using its rate of speed (r) and the time it trave

riadik2000 [5.3K]

Start with d=rt. Now, solve for r by isolating it. since r is multiplied by t, divide both sides by t. d/t=r. So your answer would be the 2nd choice.

3 0

3 years ago

Change the following military times to regular times.

lara [203]

We need numbers to help us solve it

6 0

3 years ago

Twenty-four distinguishable balls are to be placed in six boxes.(DIFFERENT BOXES) (a) In how many different ways can this be don

zvonat [6]

Answer: a) 124,596, b) 2142691552.

Step-by-step explanation:

Since we have given that

Number of distinguishable balls = 24

Number of boxes = 6

(a) In how many different ways can this be done?

$^{24}C_6\\\\=134,596$

(b) In how many different ways can this be done if box 1 must get 12 balls, box 2 must get 7 balls, box 3 must get 5 balls, and boxes 4, 5, and 6 must be empty?

Number of ways would be

$\dfrac{24!}{12!7!5!}=2142691552$

Hence, a) 124,596, b) 2142691552.

3 0

3 years ago

Which inequality is represented by this graph?

koban [17]

Answer:

x > 0

Step-by-step explanation:

If is open circle it means is less than or greater than and if is closed circle it means that is less than or equal too or greater than or equal too. In this case the circle is open so it means that is less than or greater than and the only symbol available in the answer choices is greater than. So you will be stuck with the first and second option. The answer will be x > 0 because the line is going to the right meaning that x is greater than 0. Hope this helps!!

8 0

3 years ago