Find the equation of a line perpendicular to y - 1= -x that passes through the

Mathematics

1 answer:

Goryan [66]2 years ago

7 0

Answer:

Step-by-step explanation:

firstly you separate y

y=-x-1

which means that the slope is equal to -1

then you flip the slope so -1 over -1 which is equal 1

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(1 x2) x (3 x 2) x (1 x 3) = ?

Novosadov [1.4K]

Answer:

2*6*3= 36

Step-by-step explanation:

hope this helps

Multiply whats inside the prentices first, then multiply on the outside then that's how you will get your answer

8 0

3 years ago

Please Help!!!!!! I will post a random question for you to get points from too if you give me the right answer!!!!

Tresset [83]

Answer:

The answer is A.

Step-by-step explanation:

We can easily eliminate answers C and D, because their y-intercept is not 4. We do this because according to the graph, where the line intercepts the y-axis is at the point, 4. Looking at the slope equation y=mx+b, where b represents the y-intercept, it is clear to see that when you plug 4 as b into the equation, the equation would be y=mx+4. However, answers C and D do not give us that y-intercept. Therefore, those two are wrong.

Now we're left with A and B. To understand why B is incorrect, we should know that the variable m in the same slope equation, y=mx+b, represents y/x, also commonly known as rise over run. If this is all new to you, no fear. The phrase "rise over run" just is a helpful tip to remind you what y and x are. The "rise", representing the variable y, means that it can travel either up or down, so vertically. And vice versa. The "run", representing the variable x, means that it can travel either left or right, so horizontally.

Now that we've cleared that out, you want to count how many points there are for y, or rise, until you've met a point where you can create a right triangle figure. I counted downwards, going in a negative direction, three spaces, getting to 1. From the x-axis, I started from -4 and counted to (1,0), where it would create a right triangle figure. With these calculations, I put -3/-4, which, after simplifying and canceling the negatives (two negatives equals one positive), I got the answer 3/4.

Going back to the equation, if we plug in all the values to get y=3/4x+4, that is clearly A, and not B.

Hope this helped, although it was a very lengthy explanation! Sorry I was two weeks late. I didn't see this until now.

5 0

3 years ago

I really need help!!!!

Brilliant_brown [7]

Check out the attached image for the answers.

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Statement 2 is blank, but it has the reasoning "Corresponding angles postulate"
Because BD || AE, we know that the corresponding angles are congruent.
One pair of corresponding angles is angle 1 and angle 4. This is because they are on the same side of the transversal AC and they are both above their parallel line counter-part. Similarly, angle 2 and angle 3 are another corresponding pair.
So you'll have "angle1=angle4, angle3=angle2" in the first blank slot

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Reason 3 is blank. The statement is that triangle ACE is similar to triangle BCD. The reason why the are similar is the AA (angle angle) similarity postulate. This says that if you know two pairs of angles are congruent, then the triangles are similar. The two pairs of angles were mentioned back on the previous line (line 2)
So you'll put "Angle-Angle Similarity Postulate" in the second blank.

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Look at the line just above the last line. Here we have
1 + (BA/CB) = 1 + (DE/CD)
If we subtract 1 from both sides, we end up with,
BA/CB = DE/CD
which is what will go in the last blank space

Side Note: The last statement will always be what you want to prove. So you can just look at the very top of the problem where it says "Prove:" under the "Given" part. Then just copy/paste the statement you want to prove, which in this case is BA/CB = DE/CD