1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Elanso [62]
3 years ago
14

Please I need this done quickly Explain the answer please

Mathematics
1 answer:
Mashutka [201]3 years ago
5 0
When writing an equation of a line, keep in mind that you ALWAYS need two pieces of information when you go to write an equation:
1. ANY point on the line
2. Slope (m)
3. Y-intercept (b)

Once you have these two pieces of information, you plug the x and y values from your point and the slope (m) value into the slope-intercept form, y = mx + b.


Start by solving for the slope of each line. We need two ordered pairs (x, y) from each line to solve for the slope:

Offer A:
(0, 400) and (80, 700)

Let (x1, y1) = (0, 400)
(x2, y2) = (80,700)

m = (y2 - y1)/(x2 - x1)
m = (700 – 400)/(80 – 0) = 300/80 = 15/4

Therefore, the slope (m) for Offer A = 15/4

Next, we need the y-intercept. The y-intercept is the y-coordinate of the point where the graph of the linear equation crosses the y-axis. The y-intercept is also the value of y when x = 0. One of the points we used for solving the slope for Offer A reflects the description for the y-intercept, which is point (0, 400). The y-coordinate is 400–this is the y-intercept of the line.

Now, we can establish the linear equation for Offer A: y = 15/4x + 400

Do the same steps for the other offer:

Offer B:
(0, 500)) and (100,900)
Let (x1, y1) = (0, 500)
(x2, y2) = (100,900)

m = (y2 - y1)/(x2 - x1)
m = (900 - 500)/(100 – 0) = 400/100 = 4

Therefore, the slope for Offer B is 4.

Next, we need the y-intercept. For Offer B, the line crosses at point (0, 500). The y-coordinate, 500 is the y-intercept (b) of the line.

The linear equation for Offer B is:
y = 4x + 500



**NOTE: please double-check the coordinates that I used for solving the slopes of each line before using my inputs. I had a slight difficulty going through the coordinates of your graph because it’s a bit blurry (using my phone to write this post).

Please mark my answers as the Brainliest if you find my explanations helpful :)
You might be interested in
V=1/3πh^2 (3r-h) solve for r
stellarik [79]
R=1v+h([pi]h^2) all over 3
5 0
3 years ago
When I was 6 my sister was half my age<br><br> Now I'm 70 how old is my sister?
mrs_skeptik [129]
She would be 67...always going to be 3 years younger
6 0
3 years ago
Read 2 more answers
Mark can make 42 birdays cakes in 7 days how many birthday cakes can mark make in 5 days?
iragen [17]
42 cakes in 7 days, that's 42/7= 6 cakes per day
6*5=30
8 0
3 years ago
Read 2 more answers
Write an equation in point-slope form of the line having the given slope that contains the given point. then graph the line
alexira [117]
The point-slope equation would be
y = 1/8x + 3/4
3 0
2 years ago
Read 2 more answers
Evaluate the expression using order of operations. 3 x (20 – 5)
horrorfan [7]

Answer:

3 x 15

Step-by-step explanation:

aren't you trying to figure out what the expression is simplified?

8 0
3 years ago
Read 2 more answers
Other questions:
  • I need both of these equations to be functioned into general form:
    12·1 answer
  • Ami saved $14.25 on a new scarf she purchased from macy's. she paid at most $25. What is x, the original cost of the scarf befor
    8·1 answer
  • Write the first ten terms of a sequence whose first term is -10 and whose common difference is -2.
    5·2 answers
  • I have a question that involves derivatives in the context of a triangle. Can someone confirm that the answer is 39/41?
    5·1 answer
  • Eileen has 8 times as many dollars as her sister ,crystal. Eileen had 72 dollars .how much money does crystal have?
    6·2 answers
  • The expected value of a random variable, x, is also called the mean of the distribution of that random variable. Why
    7·1 answer
  • 6/7 divided by 12 or 12/1
    5·2 answers
  • !!URGENT PLEASE HELP!!
    12·1 answer
  • What is the answer to <img src="https://tex.z-dn.net/?f=2%3D2" id="TexFormula1" title="2=2" alt="2=2" align="absmiddle" class="l
    12·2 answers
  • Type the integer that makes the following addition sentence true for Brainliest!!!!!!!!
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!