1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sp2606 [1]
3 years ago
12

Section 1 - Topic 9 Parallel and Perpendicular Lines - Part 2 (please help)

Mathematics
1 answer:
RUDIKE [14]3 years ago
6 0

9514 1404 393

Answer:

  1. y = -1/7x
  2. y = 2x -7

Step-by-step explanation:

1. The slope of the given line is the x-coefficient, 7. The slope of the perpendicular line is the negative reciprocal of this: -1/7. Since the line goes through the origin, the y-intercept is zero.

  y = -1/7x

__

2. The first part of this problem is to find the solution to the given system of equations. We can substitute for x to do that:

  3(5 -y)-2y = 10

  15 -5y = 10 . . . simplify

  -3 +y = -2 . . . . divide by -2

  y = 1, x = 4 . . . add 3 to find y; subtract y from 5 to find x

__

The second part of this problem requires we note the slope of the parallel line. It is the x-coefficient, 2. The y-intercept can be found from ...

  b = y -mx = 1 -2(4) = -7

So, the desired line in y=mx+b form is ...

  y = 2x -7

_____

The first attachment shows the perpendicular lines of problem 1.

The second attachment shows the parallel lines of problem 2.

You might be interested in
A wall of a building is 34 inches wide Sixteen inches is concrete, 12 inches is brick, and 6 inches is limestone What fraction o
Elza [17]
The fraction wall of the concrete is 8/17.
6 0
3 years ago
10 points <br> Can someone please do number 4
Andrei [34K]

This question wants to know the domain.  For example: (2,4) 2 is the domain and 4 is the range.

Then, they want you to solve by finding X the range when x =-1

x-4/x^2+5x-36

Put -1 everytime you see x

-1-4/-1^2+5(-1)-36

-5/1+(-6)-36

-5/-41 This is the range.

3 0
3 years ago
Hook wants to set aside $2000 this year for a vacation. She plans on saving $48 dollars each week. There are 52 weeks in a year.
Doss [256]
I think it is reasonable. She will have extra cash (almost $500) but that isn't a bad thing when you are going on a vacation. 

If you need to know how to do it, what I did was take the $48 and the 52 weeks and multiply them together to get $2,496.... But if you think in your own opinion it's not reasonable than say she could trim down her savings and only try to earn about 40 dollars each week; you get to the closer amount of $2,000 with $2,080...

I hope this helps. Choose for yourself though! <3 Good luck! (: 

3 0
3 years ago
What is the length of ac?
olga55 [171]

Answer: 144 cm

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
There is an automatic fee of $10 just to enter the parking lot, and when she leaves the lot, she will have to pay an additional
nignag [31]

Answer:

$20

Step-by-step explanation:

10+(2*5)=20

7 0
3 years ago
Other questions:
  • What is the value of x
    13·2 answers
  • A $1.50 comic book taxed at 7%. What is the total cost?
    15·2 answers
  • Find exact solutions of
    11·1 answer
  • 4/15ths of 49. I know the answer but I can’t seem to figure out how to do the work so if someone could tell me the steps on how
    13·1 answer
  • What is the value 4x-7 when x=4
    7·1 answer
  • Help,anyone can help me do quetion.​
    11·1 answer
  • Will give brainlyest and 12 points if get right
    7·1 answer
  • Which is the best estimate for the mass of a desktop computer
    10·1 answer
  • 1/4y =6
    13·1 answer
  • Find the area of a triangle bounded by the x-axis the line f(x)=5-5/3x and the line perpendicular to f(x)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!