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
masya89 [10]
3 years ago
11

What is the equation of the line that is perpendicular to -2/5x-7 and passes through (4,-1)?

Mathematics
1 answer:
alukav5142 [94]3 years ago
3 0

Step-by-step explanation:

maybe this is not the full expression, as you wrote the line equation in a funny way.

I understand the following :

the line is

y = (-2/5)×x - 7

perpendicular means crossing at a right angle (90 degrees).

the slope of the original line is -2/5.

as in every line equation, the slope is the factor of x. and it expresses the ratio y/x indicating the amount of units y is changing, when x changes a certain amount of units (e.g. when going from one point on the line to another).

the perpendicular slope turns the original y/x ratio upside-down, and also flips the sign.

so, it is 5/2.

the equation for the perpendicular line looks like

y = (5/2)×x + b

now what is b ?

for this we use the specified point on the line : (4, -1)

and we put these values as x and y into the equation :

-1 = (5/2)×4 + b = 5×2 + b = 10 + b

b = -11

and so, the full equation of the perpendicular line is

y = (5/2)×x - 11

You might be interested in
N^2+6n+c<br><br> Find the value of c that completes the square
Anon25 [30]

Answer:

The value of ”c” can by found by this formula: (b/2)^2. In this equation the ”b” is 6. So, (6/3)^2=3^2=9.

The value of “c” that completes the square is 9.

:)

6 0
2 years ago
How many terms are in the following expression: 7x + 3y – 5 + 2x + 11
zepelin [54]
There are 3 terms. Because if you simplify it, 7x and 2x would be 9x.. and -5+11 would be 6 so there would be (9x+3y+6) left. so 3 terms
6 0
3 years ago
Read 2 more answers
Help pls I have no idea lol
Phantasy [73]

Answer:

a=7b=9c=4

Step-by-step explanation:

3 0
3 years ago
Fill in the blank to make the statement true: -18 ___ -19 <br><br> &lt; <br><br>= <br><br>&gt;
just olya [345]

Answer: -18 > -19

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Write the word sentence as an inequality.
Flura [38]

Answer:

y < -8

Step-by-step explanation:

If a number is no more than it means that number is less.

The symbol for less is <

The word sentence "A number y is no more than -8" as an inequality is:

y < -8

Therefore the variable (or unknown) y is less than -8.

5 0
3 years ago
Other questions:
  • Round to the nearest tenth place it is repeating decimal 4/6
    15·1 answer
  • Mary knits scarves and sweaters to sell. Scarves take 2 hours to knit and sweaters take 10 hours. Mary would like to spend no mo
    11·1 answer
  • A cube with edges of length x centimeters has volume v(x)=x^3 at the instant when x=2, what is the rate of change of x, in centi
    13·2 answers
  • The perimeter of a square tent is 82 feet. Find the area of the ground which the tent will cover
    15·1 answer
  • Timo was curious if quadrilaterals LMNR and PQNO were similar, so he tried to map one figure onto the
    9·2 answers
  • If Jun has 12 t-shirts, 6 pairs of pants, and 3 pair of shoes how many ways can he dress himself up for the day?
    14·1 answer
  • What the answer for the question
    14·2 answers
  • What are other equations for (12-4) x7 =x
    8·1 answer
  • In November, the Sport Shop sold
    7·1 answer
  • *PLEASE ANSWER* // *CONFUSED*
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!