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3 years ago

What are the slope and y-intercept of the graph of the given equation?

Mathematics

1 answer:

tia_tia [17]3 years ago

5 0

Answer:

The slope is 9/8, and the y-intercept is -10/3

Step-by-step explanation:

y = mx + b

in this case:

m = 9/8

b = -10/3

and the m in the equation is the slope while the b is the y-intercept

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What is the slope??? Please show step by step!!

aksik [14]

Answer:

In order to find the slope, we would need to format the coordinates like rise over run (y/x)

We find two points, (-6, 12) and (-5, 14)

Now we subtract the y coordinates from each other and do the same for the x coordinates

14 and 12 are our y coordinates so that will be our rise

-5 and -6 are x coordinates so that will be our run

14 - 12 2

_______ = ______

-5 - (-6) 1

2 is the slope

6 0

3 years ago

The price of the box of 15 stickers is $6. The price of the box of 25 stickers is $8. All prices are without tax, and the price

REY [17]

Answer:

$y=0.2x+3$

Step-by-step explanation:

Let

x ----> the number of stickers

y ----> the price of the boxes

we have the points

$A(15,6),B(25,8)$

<em>Find the slope</em>

$m=(8-6)/(25-15)$

$m=2/10=0.20$

<em>Find the equation of the line into point slope form</em>

The equation is equal to

$y-y1=m(x-x1)$

substitute the value of m and the point A

$y-6=0.2(x-15)$

$y=0.2x-3+6$

$y=0.2x+3$ ----> linear equation that represent the situation

7 0

3 years ago

of 320 consumers polled, some purchase blu-ray movies, some only purchase movies on dvd, and some do both. if 300 people polled

Helga [31]

Answer:

20 people only buy dvds.

Step-by-step explanation:

There are two groups in this problem. One group of people that buys dvds and one that buys blu rays. The total amount of people who buy blu rays is 300, but there's an intersection between the groups and the size of this is 280 people who actually buy both. In order to find out how many people only buy DVDs we first need to figure out how many only buy blu-rays. That is:

people who only buy blu rays = people who buy blu rays - people who buys blu rays and dvds

people who only buy blu rays = 300 - 280 = 20

We can now calculate the amount of people who only buy dvds and that is:

people who only buy dvds =total amount of people - ( people who only buy blu rays + people who buy both)

people who only buy dvds = 320 - (20 + 280) = 320 - 300 = 20 people