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wlad13 [49]
3 years ago
10

Which if the following lines has a slope of -1/2? A). x+2y=0 B). x-2y=0 C). -x+2y=0

Mathematics
1 answer:
NikAS [45]3 years ago
5 0

Answer:

A) x + 2y = 0

Step-by-step explanation:

In solving for y, you would follow these steps:

Subtract x in order to get 2y = -x

Divide by 2 on both sides to get y = -1/2x

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Read 2 more answers
What is the equation for the line? enter your answer in the box
Igoryamba
To get the equation of the line, you need two points that belong to this line.
From the given graph, we can choose any two points: (0,-4) and (-2,0)

The general for of the linear straight line is:
y = mx + c where m is the slope and c is the y-intercept

First, we will calculate the slope using the following rule:
slope = (y2-y1) / (x2-x1)
slope (m) = (0--4) / (-2-0) = 4/-2 = -2
The equation of the line now is: y = -2x + c

Then, we will get the value of the c. To do so, we will choose any point and substitute in the equation. I will choose the point (0,-4)
y = -2x + c
-4 = -2(0) + c
c = -4

Based on the above calculations, the equation of the line is:
y = -2x - 4
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3 years ago
Brainly do ur magic pls.?
jok3333 [9.3K]

1. 3y

multiplying 3 and y together gets 3y

2. y-5

5 less implies that we subtract 5 from y

3. y+7

adding 7 to y, self-explanatory

4. 9y

same thing as #1

5. \frac{y}{8}

quotient of implies division, since number y is listed first, y is the numerator

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