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omeli [17]
3 years ago
7

What is the equation of the line with a slope of 1/2, and which passes through the point (-2, 4)?

Mathematics
1 answer:
irina1246 [14]3 years ago
7 0

Step-by-step explanation:

How I figured this out is kind of plug in play with a bit of algebra, you want to get it to y = mx + b so to do that, you first need to set up your equation like (y - y1) = m(x - x1)

Plug in what you know:

(y - 4) = 1/2(x + 2)  (notice I changed the x- x1 to x + x1 because x1 in this is a negative and subtracting a negative is the same as adding)

Then figure out what you don't know:

Distribute 1/2 to x and -2

(y - 4) = 1/2x -1

add 4 on both sides to leave y by itself

<u>y = 4.5x + 3</u>

Therefore your answer should be <u>y = 4.5x + 3</u>

Let me know if I got it wrong please

Hope this helps! <3

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Step-by-step explanation: if you were looking for the value of x, hope this helps!

first, you have to make sure that the correct values are on the right side to allow us to find the answer faster and easier. your modified formula should look like this: 4x-3.2x=11+13

if you do the operations on each side, it will look like this: 0.8x=24, from here, all you have to do now is divide 24 by 0.8 to get the X value, which will result in 30!

8 0
3 years ago
A right triangle has sides of lengths 18 ​, 24 ​, and 30 units. What is the area of the​ triangle? Draw the shape on a grid to h
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Answer:216

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7 0
2 years ago
PLEEEAAASSSEEE HELP ME I NEED IT IT'S URGENT!!!
Annette [7]
I think number 2 is 5
3 0
3 years ago
Read 2 more answers
Y varies directly with x, and y = 5 when x = 4. What is the value of x when y = 8?
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As y varies directly with x, there is a proportionality constant. As x increases by that certain constant, y also increases. We equate:
y = kx
where k = proportionality constant.
Given the condition, y = 5 when x = 4, then we solve for k:
5 = k(4)
k = 5/4 or 1.25
When y = 8, then
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A science test, which is worth 100 points, consists of 24 questions. Each question is worth either 3 points or 5 points. If x is
antoniya [11.8K]
We can solve this system using elimination:

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We can then plug this back into one of the original equations:

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Therefore, there are 10 3-point questions and 14 5-point questions.

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