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Svetach [21]
3 years ago
14

How would you write an equation of the line with the points (-2,4) (4,1)

Mathematics
1 answer:
Elena L [17]3 years ago
5 0
There are several eqaiton types

1. point slope
passes through (x1,y1) and has a slope of m
y-y1=m(x-x1)

2. slope intercept
y=mx+b
m=slope
b=y intercept

3. standard form
ax+by=c or ax+by-c=0
where a, b, and c are integers and a is usually positive


so


first find the slope

slope between (x1,y1) and (x2,y2) is (y2-y1)/(x2-x1)
slope between (-2,4) and (4,1) is (1-4)/(4-(-2))=(-3)/(4+2)=-3/6=-1/2

use point slope
using point (4,1)
y-1=-1/2(x-4)

now let's do slope intercept
solve for y
y-1=-1/2(x-4)
y-1=-1/2x+2
y=-1/2x+3 is slope intercept

now standard form
times both sides by 2
2y=-x+6
add x both sides
x+2y=6 is standard form



so

possible equations are
y-1=\frac{-1}{2}(x-4)
y-4=\frac{-1}{2}(x+2)
y=\frac{-1}{2}x+3
x+2y=6
x+2y-6=0
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Given an integer, how do you find it's opposite?
Dimas [21]
Given an integer, how do u find its opposite....

change the sign

example :
2....its opposite is -2
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5....its opposite is -5
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6 0
3 years ago
In ΔVWX, the measure of ∠X=90°, WX = 8.3 feet, and XV = 2.5 feet. Find the measure of ∠W to the nearest tenth of a degree.
kiruha [24]

Answer:

16.76°

Step-by-step explanation:

In ΔVWX, the measure of ∠X=90°, WX = 8.3 feet, and XV = 2.5 feet.

We want to find the measure of <W.

We know side length that is adjacent and opposite to <W.

We can use the tangent ratio, to find the measure of <W.

The tangent ratio is opposite over hypotenuse.

\tan(m \angle \: w)  =  \frac{2.5}{8.3}

\tan(m \angle \: w)  =  0.301

Take tangent inverse to get:

m \angle \: w= { \tan}^{ - 1}   (0.301)

m \angle \: w=16.76  \degree

7 0
3 years ago
The fine schedule for overdue books at the county library is modeled by the values in the table.
Tasya [4]

Answer:

The answer would be B!

Step-by-step explanation:

In the chart if you divide the number of days over due to the cost of the fine, you get 5/2 every time. therefore, if y is the cost in cents and x is the days overdue, you would multiply x5/2 or y=5/2x, so your answer is B (y=5/2x).  

hoped this helped :D

3 0
3 years ago
Read 2 more answers
What is the value of -2xy if x = -1 and y = 6? <br><br> A. 12 <br> B.-12 <br> C. 26 <br> D. 8
uranmaximum [27]

Answer: A

Step-by-step explanation:

If we are given the values of x and y, we just have to plug them into the expression. So -2xy means -2(-1)(6) which is 12. 12 corresponds to A so A is the correct answer.

3 0
3 years ago
Read 2 more answers
Total cost for a computer if pay 600 down and 35.00 a month for 12 months
Stella [2.4K]
First step you would have to do would be to times 35 by 12 to see how much you would have to pay for 12 months.

35 x 12 = 420

Then, as you said, you a down payment of 600 so then you'd add.

600 + 420 = 1,020.

So the total cost of the computer would be $1,020.



8 0
3 years ago
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