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NISA [10]
3 years ago
14

What is an equation of the line that passes through the point (-1, 4) and is parallel

Mathematics
1 answer:
vesna_86 [32]3 years ago
3 0

Answer:

The answer is

<h2>y + 2x = 2</h2>

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

To find the equation of the parallel line we must first find the slope of the original line

The original line is 2x + y = 1

We must first write the equation in the general form above

That's

y = - 2x + 1

Comparing with the general equation above

Slope = - 2

Since the lines are parallel their slope are also the same

Slope of parallel line = - 2

So the equation of the line using point

( - 1 , 4) and slope - 2 is

<h3>y - 4 =  - 2(x + 1) \\ y - 4 =  - 2x - 2 \\ y + 2x =  - 2 + 4</h3>

We have the final answer as

<h3>y + 2x = 2</h3>

Hope this helps you

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5/9*18/25<br><br> i need help
Akimi4 [234]

Answer:

\frac{2}{5}

Step-by-step explanation:

\frac{5}{9} * \frac{18}{25} = \frac{5 * 18}{9 * 25} = \frac{90}{225} = \frac{45 * 2}{45 * 5} = \frac{2}{5}

4 0
3 years ago
A farmer is tracking the amount of corn his land is yielding each year. He finds that the function f(x) = −x2 + 20x + 50 models
polet [3.4K]

Answer:

The crop yield increased by 9 pounds per acre from year 1 to year 10.

Step-by-step explanation:

To solve this we are using the average rate of change formula: Av=\frac{f(x_2)-f(x_1)}{x_2-x_1}, where:

x_2 is the second point in the function

x_1 is the first point in the function

f(x_2) is the function evaluated at the second point

f(x_1) is the function evaluated at the first point

We know that the first point is 1 year and the second point is 10 years, so x_1=1 and x_2=10. Replacing values:

Av=\frac{-(10)^2+20(10)+50-[-(1)^2+20(1)+50]}{10-1}

Av=\frac{-100+200+50-[-1+20+50]}{9}

Av=\frac{150-[69]}{9}

Av=\frac{150-69}{9}

Av=\frac{81}{9}

Av=9

Since f(x) represents the number of pounds per acre and x the number of years, we can conclude that the crop yield increased by 9 pounds per acre from year 1 to year 10.

6 0
3 years ago
What are the values of x and y
Gelneren [198K]

Unfortunately, there is no way I can find the value of X and Y because there is no question for it.

You can either find the value of X and Y in the problem or make X and Y your own value if you need to find something that is equivalent.

I hope this helped.

3 0
4 years ago
For which polygon is the sum of the interior angles equal to 720?
Free_Kalibri [48]
Answer: Hexagon

Explanation: Just trust me ;)
8 0
3 years ago
Read 2 more answers
Please translate 2 minus the product of a number and 9 is 20.
ryzh [129]
Hey there! :D

2 minus the product of a number and 9 is 20. 

2-9n=20 <== equation

number=n minus= - (9 and n are next to each other, so that means they are being multiplied) It is equal to 20.

I hope this helps!
~kaikers
8 0
3 years ago
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