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
stellarik [79]
3 years ago
15

What is the y-intercept of the function,represented by the table of values below?

Mathematics
1 answer:
Sliva [168]3 years ago
3 0
Answer: Choice A) 8

------------------------------------------------------------------

If you plot all of the points, you'll see they all fall on the same straight line. The slope of this line is m = -4
Each time x increases by 1, y decreases by 4

Going in reverse, if we decrease x by 1, then we increase y by 4
So the pair (x,y) = (1,4) shown in row 2 will lead to (0,8) if we use the trick of increasing y by 4 when decreasing x by 1.

Another way to see this is to use m = -4 with (x,y) = (1,4) and you'll find that b = 8. So the equation of this line is y = -4x+8

Or you can use a graphical method to find the y intercept

Either way, the answer is 8. This is where the graph crosses the y axis.

You might be interested in
james' daily wage was $5 more than Davis's. Although James worked 3 days less than David, they earned $180 each. Find the number
zalisa [80]

Answer: 9 days

Step-by-step explanation:

Let x represent James' daily wage

James' daily wage was $5 more than Davis's. It means that Davis's daily wage will be $(x-5)

Let y represent number of days that James worked. James worked 3 days less than David. It means that the number of days that Davis worked would be (y + 3) days

they earned $180 each. Total amount of money earned by either of of them is the product of wage and the number of days worked.

Since James earned $180, then

180 = xy - - - - - - - - 1

Since Davis also earned $180, then

180 = (x - 5)(y + 3)

xy +3x -5y -15 = 180 - - - - - - - - 2

Substituting xy = 180 into equation 2

It becomes

180 + 3x - 5y -15 = 180

3x - 5y = 180 - 180 + 15

3x - 5y = 15 - - - - - - -3

From equation 1, x = 180/y

Substituting x = 180/y into equation 3, it becomes

3 × 180/y - 5y = 15

540 - 5y^2 = 15y

5y^2 + 15y -540 = 0

Dividing through by 5

y^2 + 3y -108 = 0

y^2 + 12y - 9y -108 = 0

y(y + 12) - 9(y + 12) = 0

y + 12 = 0 or y - 9 = 0

y = -12 or y = 9

Since the number of days cannot be negative, then,

Number of days that James worked will be 9 days

8 0
3 years ago
If 14 out of 20people like chocolate milk, what percent of people don't like chocolate milk?
allsm [11]
The answer should be D. 70%.
Hopefully that helps! :) 
4 0
3 years ago
Read 2 more answers
Given that the area of rectangle IJKL 500 what are it’s length and width
Art [367]

Answer:

Length=5

Width=100

Step-by-step explanation:

area of a rectangle=length x width

500= 5 x 100

500=500

5 0
3 years ago
Elsie is going to flip a coin and spin a spinner. The coin has a heads and a tails. The spinner has four equal parts that are ye
Vedmedyk [2.9K]

Answer:

1/6

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is the cheapest way to go to a ball game if the admissions options are as shown? A) $10 for a single B) $15 for a couple C)
vivado [14]

Answer: C

Step-by-step explanation: A = 10 for one person. B = 7.5 for one person. C = 6.67 for one person. D = 8.75 for one person. E = 10 for one person.

Out of all of these, C is the cheapest.

5 0
3 years ago
Other questions:
  • Aliyah wants to estimate the value of the quotient of 5.68 x 10^-3 and 8.54 x 10^-9. Which statement about the value is true?
    5·2 answers
  • Julie's overtime pay is $7 an hour more than her regular pay. She worked 6 hours at her regular wage and 4 hours at her overtime
    7·1 answer
  • HELPPP FIRST ANSWER THAT IS ACCURATE WITH EXPLANATION GETS BRAINLIST 5 STARS AND THANKS ( DONT PLAGIARIZE )
    7·1 answer
  • The mass of a dust particle is 0.000000000753 kg. How would this number be written in scientific notation?
    10·1 answer
  • Piece function:
    14·1 answer
  • Write all functions that are symmetric about the​ y-axis. Choose from the following six circular functions. yequals=sine xsinx​,
    11·1 answer
  • Pyramid x is similar to pyramid y. The surface area of pyramid x is 135 cm² and the surface area of pyramid y is 240 cm². if the
    5·1 answer
  • Please help, brainliest, five star, thanks
    13·2 answers
  • Solve the equation for x. <br> x2 = 676
    6·2 answers
  • Identify coordinate point C.<br><br> (1, 5)<br> (6, 7)<br> (7, 3)<br> (0, 2)
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!