Math help! FIRST ANSWER GETS BEST ANSWER!! HURRY!
Favorites|Homepage
Subscriptions | sitemap
HOME > Mathematics > Math help! FIRST ANSWER GETS BEST ANSWER!! HURRY!

Math help! FIRST ANSWER GETS BEST ANSWER!! HURRY!

[From: ] [author: ] [Date: 11-10-17] [Hit: ]
You have:x1 ,y1 x2,(3,500, 950) and (2,800,......
You sell sporting goods. Your wages depend on the value of your sales. One week you sold $3,500 in sporting goods, earning $950. Another week you sold $2,800 in sporting goods, earning $810. Write an equation of the line that represents the situation in standard form. DETAILS!

-
slopey= (3500-2800) / (950-810) =700/ 140 =5

y=mx+b is the formula for a line

y=5x+b

substitute

3500=5*950+b
b=-1250

y=5x-1250

-
Ok. Make them into points. (x,y) x being the amount you sold and y being the amount you earned.

You have:
x1 , y1 x2 , y2
(3,500, 950) and (2,800, 810)

Find the Slope
y2 - y1 / x2 - x1
(810 - 950) / (2800 - 3500) = .2 So m = .2

Then Plug back a point to get your b.
(Using (3,500 , 950))
y = mx + b
950 = (.2)(3500) + b
950 = 700 + b
b = 250

(Using (2,800 , 810 ))
y = mx + b
810 = (,2)(2,800) + b
810 = 560 + b
b = 250

So your line is
y = .2x + 250

STANDARD FORM
Ax + By = C
You need A to be positive so
move the y term to the other side and 250 to the other side as well.

.2x - y = -250

-
Type in brainfuse homework help into bing. Clock on the first link. Click on live help. Click your grade and class. Live tutors will help you online for FREE. I use it all of the time.

-
really?

-
Lol

-
That's a stupid question
1
keywords: HURRY,ANSWER,help,GETS,BEST,Math,FIRST,Math help! FIRST ANSWER GETS BEST ANSWER!! HURRY!
New
Hot
© 2008-2010 http://www.science-mathematics.com . Program by zplan cms. Theme by wukong .