All categories

3 years ago

Please help me with whatever you can i really need to get this done :)

Mathematics

1 answer:

Nady [450]3 years ago

6 0

Answer:

7a) m=2x

7b) m=-3/4x

8)m=-5x

9) m=1/10x

10) 1/4x

Step-by-step explanation: So first what you want to do is take two points from your graph that you see that your line is on.

for example, on a), you would take lets say (3,2) and (0,-4)

*tip! if your X and Y intercepts are whole numbers it will be best to use them but if not, any two points will work.

so then you would first take your y coordinates of each point and plug it into the equation, $\frac{y^2-y^1}{x^2-x^1}$ .

so lets break it down!

so lets first take our y coordinates, (3,2) and (0,-4) and plug them into the equations

$\frac{-4-2}{x^2-x^1}$

so then lets subtract! -4 -2 gives us -6. so the numerator is -6.

lets now plug in our x values (3,2) and (0,-4)

$\frac{-6}{0-3}$

after we do the subtraction, we get -3 as our denominator.

so we are left with -6/-3. so -6/-3 gives us a slope of 2.

therefore you have Y=2x+b

Hopes this helps :)!

You might be interested in

Question

enot [183]

The answer should be A simple interest

6 0

3 years ago

Read 2 more answers

Cual es la amplitud de estos conjuntos de datos 12,16,48,64,36,48,12,32,y 48

nalin [4]

Answer:

Step-by-step explanation:

8 0

3 years ago

This is the example my teacher used. However, I still don't understand what makes the integers even or odd. I was hoping someone

kow [346]

Answer:

<h2>Here's what makes an integer odd:</h2>

It is NOT a multiple of 2.

When divided by 2, the quotient would be a decimal or have a remainder or fraction.

<h2>Here's what makes an integer even:</h2>

It is a multiple of 2.

When divided by 2, the quotient has a whole number.

<em>The odd numbers from one to 10 are: 1, 3, 5, 7, 9.</em>

<em>The even numbers from one to 10 are: 2, 4, 6, 8, 10. </em>

With big numbers, if it ends with any of the odd numbers from one to ten, listed above, it would be odd. This goes for the same with even.

An odd number and even number has a pattern....

[odd, even, odd, even, odd...] [1, 2, 3, 4, 5]

So, if x was an odd number, adding it by 2, 4, 6, etc. will result in another odd number.

Here's an example:

$x= 17\\x + 2 = ?\\(17) + 2 = 19$

<em>See how x is an odd number and the sum of the number and two makes another odd number? </em>

The same can go with an even number:

$x=2\\x + 6 = ?\\(2) + 6= 8$

<em>See how x is an even number and the sum of the number and six makes another even number? </em>

I hope my answer helps you understand even and odd numbers.

6 0

3 years ago

the sum of 2 consecutive integers is at most the difference between nine times the smaller and 5 times the larger

Reil [10]

<h2>Answer:</h2>

$x\geq 3 \ and \ x+1 \geq 4$

<h2>Step-by-step explanation:</h2>

The question in this problem is:

<em>The sum of 2 consecutive integers is at most the difference between nine times the smaller and 5 times the larger. What are the numbers?</em>

<em />

First of all, let's name the first variable $x$ which is the smaller number. Accordingly, the lager number will be $x+1$ given that those numbers are consecutive. On the other hand<em> at most </em>conveys the idea of an inequality, which is:

$\leq \\ which \ means \ less \ than$

So:

1. The sum of 2 consecutive integers can be written as:

$v+(v+1)$

2. Nine times the smaller and 5 times the larger can be written as:

$9v-5(v+1)$

Finally, the whole statement:

The sum of 2 consecutive integers is at most the difference between nine times the smaller and 5 times the larger:

$x+(x+1) \leq 9x-5(x+1) \\ \\ x+x+1\leq 9x-5x-5 \\ \\ 2x+1 \leq 4x-5 \\ \\ 6 \leq 2x \\ \\$

$x+(x+1) \leq 9x-5(x+1) \\ \\ x+x+1\leq 9x-5x-5 \\ \\ 2x+1 \leq 4x-5 \\ \\ 6 \leq 2x \\ \\ \frac{6}{2} \leq \frac{2x}{2} \\ \\ 3 \leq x \\ \\ x\geq 3 \\ \\ and \\ \\ x+1 \geq 4$