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
elena-14-01-66 [18.8K]
3 years ago
15

Complete the equation of the line through (2,1) and (5,-8)

Mathematics
1 answer:
Mila [183]3 years ago
7 0

First we calculate the slope (which is called "m".

Slope = m = (Y2 -Y1) ÷ (X2 -X1)

m = (-8 -1) / (5 -2) = -9 / 3 = -3

We next fill in this equation: b = y -mx

We know m = -3 and we can choose a point (2, 1) to calculate "b"

b = 1 --3 * 2 b = 7

Putting this into y = mx +b

y = -3x +7


You might be interested in
Need this very badly ​
ira [324]

Answer:

4

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Helpppppppp plizzzzzzzzzzzzz
Margarita [4]
Take the equation: y = 520 + 14x and put each value from the table in for x and y.  

100 = 520 + 14 * -30
100 = 520 + -420
100 = 100   When we get an answer like this where the numbers on both sides of the equation match, we know that this (x,y) point is a part of the solution to the function.

So, you would work through each line in the table.  If they are all like the one above, the answer is Yes.  If not, it is no.
7 0
3 years ago
Find the length of JM
rosijanka [135]

Answer:

16

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A parking lot is 100 yards long. What is the length of 3/4 of the parking lot, in feet? (Not in words)
yaroslaw [1]

1 yard = 3 feet.

100 yards x 3 = 300 feet.

300 feet x 3/4 = 225 feet.

The answer is 225 feet.

6 0
3 years ago
Read 2 more answers
1. What does it mean that Nikoleta is in the 10th percentile for length and weight? Is that a desirable statistic if she was in
VladimirAG [237]

Explanation:

1. It means that Nikoleta is longer and heavier than 10% of children her age.

2. We generally expect that a change from being in the 50th percentile to the 10th percentile signifies a condition that is interfering with normal growth. That is not usually considered desirable.

5 0
3 years ago
Read 2 more answers
Other questions:
  • During a walk a thin Noah’s time in hours, t, and distance in miles, d, are related by the equation 1/3d = t. A graph of the equ
    5·1 answer
  • What’s the value of x?<br> 3x-24=x+10
    10·2 answers
  • What is the product of -3 1/4 and -1 1/2
    8·1 answer
  • 106 percent of $__ is 7.95
    5·1 answer
  • A random sample of the correct choice on 400 multiple-choice questions on a variety of AP exams1 shows that B was the most commo
    11·1 answer
  • Which expression is equivalent to C^2-4/c+3 divided by c+2/3(c^2-9)
    14·1 answer
  • What is the value of the expression? −29−(−1/3÷3/5)
    5·1 answer
  • PLS HELP FAST<br><br>Question in attachment<br><br>The line is 8 cm on the map
    6·1 answer
  • I NEED HELP ASAP WITH THIS QUESTION
    5·1 answer
  • Which graph would be​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!