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
il63 [147K]
2 years ago
14

What is the equation of the line that is perpendicular to y = 2x – 4 and has a y-intercept of –2?

Mathematics
1 answer:
satela [25.4K]2 years ago
3 0
Hi there!

The equation of a line perpendicular to another line always has an opposite and reciprocal slope. For this equation here, the opposite and reciprocal slope of 2x is -1/2x. This is because 2 becomes negative (-2) and it is flipped from the numerator (-1/2). So, our equation so far is y = -1/2x + b. B represents the y-intercept. And since we already know the y-intercept, all we have to do is plug it in!
Here is our finished equation: y = -1/2x - 2.

Hope this helps!! :)
You might be interested in
miguel is making an obstacle course for feild day.at the end of every sixth of the course is a tire.at the end of every third of
Bogdan [553]

I hope this helped! Good luck

8 0
3 years ago
1.<br> 3z^2+ 8z-3<br> in quadratic formula
tensa zangetsu [6.8K]

Answer:

What grade of math is this?

Step-by-step explanation:

4 0
3 years ago
A scarf needs ¾ of a yard of fabric. How many scarves can be made from 9 yards of fabric?
marissa [1.9K]

Answer:

exactly 12 !

Step-by-step explanation:

3/4 is the length need, times 12, which is the end result of scarves, equals 9, the yards of fabric !!

3/4 x 12 = 9

i hope this helped!!!!

3 0
2 years ago
Please solve this sheet.
lyudmila [28]
Hello,

A: roots: -1,-3
a point (-2,1)
Vertex=((-2,1)

y=k*(x+1)(x+3) using roots
but k*(-2+1)(-2+3)=1==>k*(-1)*1=1==>k=-1

eq: y=-(x+1)(x+3)
==>y=-(x²+3x+x+3)
==>y=-x²-4x-3
y=k(x+2)²+1 if x=-1,y=0 ==>k*1+1=0==>k=-1
==>y=-(x+2)²+1

Answer :A--> R,K

B)
y=k(x+4)²-2 and k=-1/2
y=-1/2(x+4)²-2
y=-1/2x²-4x-10

answer B--> I,≈W if it is written -1/2*x²  (square has been forgotten)

C:
y=2x²-16x+30
y=2(x-4)²-2
answer : C-->S,J

D:
y=-(x+3)(x+1)
y=-x²-4x-3
=-(x+2)²+1
answer D--> V,L

E:
Here there is a problem: or the graph is wrong, or 2 equations are missing!

y=1(x+1)(x-3) using roots
y=x²-2x-3 ≈ T si it were -2x and not +2x.

y=(x-1)²-4 ≈H is it were -1 in place of +1 [H:y=(x+1)²-4]




6 0
3 years ago
Camden has an action figure collection of 380 action figures. He keeps 55% of the action figures on his wall. How many action fi
svet-max [94.6K]
209 action figures on his wall

380/100 = 3.8
so there would be 3.8 action figures per 1%
then 3.8*55 =209
6 0
2 years ago
Other questions:
  • Gillian purchased 25 books at the library book sale. Each hardcover book cost $1.50, and each paperback book cost $0.50. Gillian
    9·2 answers
  • Write a numerical expression to represent the number of apps Priscilla and Cynthia have combined. (Do not simplify the expressio
    10·2 answers
  • How can you simplify 24<br>                                ---<br>                                30
    14·2 answers
  • Nicole shines a light from a window of a lighthouse on a cliff 250 feet above the water level. Nick 10 feet above the water leve
    10·1 answer
  • A school has an equal amount of boys and girls. You use a coin to simulate the first three students to arrive at school each day
    10·1 answer
  • ~f r e e ~ p o i n t s ~ i f ~ y o u ~ a n s w e r ~ t h i s ~ I m P o S s I b L e ~ q u e s t i o n~
    12·1 answer
  • Which of the following points is a solution of the system shown? x + y ≥ 6 x ≥ 4
    13·1 answer
  • 3x - 5y = 4, -2x + 6y = 18 (system of equations)
    11·2 answers
  • Globes that were once selling for $20 are now selling for $7. what percentage is th<br>e discount​
    13·1 answer
  • Olaolu’s monthly salary is 604.18.He pays 10%as income tax per month.What is his monthly tax to the nearest naira
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!