darthshot4
25.06.2019 •
Mathematics
Write an equation of the line that passes through points (4,1) and (-2,7) answer !
Solved
Show answers
More tips
- C Computers and Internet Connecting Your TV to Your Computer: Easy and Fast...
- L Leisure and Entertainment How to Make a Crab Trap in Just a Few Minutes...
- H Health and Medicine How Much Does Abortion Cost? Expert Answers and Insights...
- S Sport How to Build Arm Muscles? Effective Exercises and Tips...
- H Health and Medicine When can it be said that a person has a normal pulse?...
- A Art and Culture When Will Eurovision 2011 Take Place?...
- S Style and Beauty How to Choose the Perfect Hair Straightener?...
- F Family and Home Why Having Pets at Home is Good for Your Health...
- H Health and Medicine How to perform artificial respiration?...
- H Health and Medicine 10 Tips for Avoiding Vitamin Deficiency...
Answers on questions: Mathematics
- M Mathematics Question 1 A printer prints 28 photos in 8 minutes. a. How many minutes does it take to print 21 more photos?...
- M Mathematics Find both first partial derivatives....
- M Mathematics 1. (-4)+(-18)= 2. 5-14= 3.(-12)-7= 4.10+(-16)= show your work for each question...
- M Mathematics A dog kennel owner has 121 ft of fencing to enclose a rectangular dog run. She wants it to be 5 times longer than it is wide. Find the dimensions of the dog run....
- M Mathematics 1. Which of the following is NOT an expression? A) 3x + 1 B) 4x2-6 C) 5b D) 6y + 1z = 7x - 3w...
- M Mathematics Hello, can someone help me with my math?...
- M Mathematics Transversal Problems with equations help...
- M Mathematics Someone help. (Find the area of a rectangle with a lenght of 5a^2 b^4 and a width of (3ab^3)^2...
- M Mathematics 8x83x8303x838x83x9993x93939x99393...
- M Mathematics If a new truck costs $43,750 and it depreciates 18% per year, what will the truck be worth in 5 years? 1 SEE ANSWER...
Ответ:
y = - x + 5
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y-intercept )
To calculate m use the gradient formula
m = ( y₂ - y₁ ) / ( x₂ - x₁ )
with (x₁, y₁ ) = (4, 1) and (x₂, y₂ ) = (- 2, 7)
m = = = - 1, hence
y = - x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
using (4, 1), then
1 = - 4 + c ⇒ c = 1 + 4 = 5
y = - x + 5 ← equation of line
Ответ:
y = -x+5
Step-by-step explanation:
We have 2 points so we can find the slope
m = (y2-y1)/(x2-x1)
= (7-1)/(-2-4)
= 6/-6
=-1
We can use point slope form for the equation of a line
y-y1=m(x-x1)
y-1 = -1(x-4)
Distribute
y-1 = -1 x +4
Add 1 to each side
y-1+1 = -x +4+1
y = -x+5
Ответ: