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
spayn [35]
2 years ago
15

Find the equation of the line that passes through (-1,2) and is perpendicular to

Mathematics
1 answer:
Natalija [7]2 years ago
8 0

Answer:

Remember that the slope of perpendicular lines are negative reciprocals of each other.

Step-by-step explanation:

y = 1 - 2x     the slope is -2     the value of the x term.

So the slope of the new line using point (- 1, 2)  is  1/2.

Now use y = mx + b where y = -1, x = 2, and m = 1/2 .

y = mx + b

-1 = 1/2(2) + b                solve for "b", the y-intersect

-1 =  1 + b

-2 = b

The line that is perpendicular to y = 1 - 2x  is  y = 1/2x - 2

You might be interested in
What is the volume of a sphere with a radius of 3 inches? 12π cubic inches 24π cubic inches 36π cubic inches 48π cubic inches
Anni [7]

Answer:

The answer is

<h2>36π cubic inches</h2>

Step-by-step explanation:

Volume of a sphere is given by

<h3>V =  \frac{4}{3} \pi  {r}^{3}</h3>

where r is the radius

From the question

r = 3 inches

Substitute the value into the above formula and solve for the volume

That's

<h3>V =  \frac{4}{3}(  {3})^{3} \pi \\  =  \frac{4}{3}  \times 27\pi \\  = 4 \times 9\pi</h3>

We have the final answer as

<h3>36π cubic inches</h3>

Hope this helps you

4 0
2 years ago
The triangle area is 90ft^2 and the height is 10 what's the base
Sidana [21]
Area of triangle = 1/2 x base x height
Let the base be "b"

90 = 1/2 x 10 x b
90 = 5b
b = 18 ft

Base = 18 ft
4 0
3 years ago
Help please I feel stupid
deff fn [24]

Answer:

44

Step-by-step explanation:

h(-7) means use the expression labeled h and evaluate it for x=-7.

Like this:

(-7)^2 - 5

49 - 5

44

3 0
3 years ago
How do u graph y=-2x
Anit [1.1K]

Answer:

if x=1 y=-2x1

Step-by-step explanation:

3 0
3 years ago
How many real number solutions does the equation y=2x^2−8x+8 have?
Dafna1 [17]

Answer:

1 real solution

Step-by-step explanation:

y=2x^2−8x+8

We can use the discriminant to determine the number of real solutions

b^2 -4ac

a =2  b = -8  c=8

(-8)^2 - 4(2)(8)

64 - 64

0

Since the discriminant is 0 there is 1 real solution

>0 there are 2 real solutions

< 0 two complex solutions

6 0
2 years ago
Other questions:
  • In two days, 48,000 gallons of oil gushed out of a well. At what rate did the oil flow from the well?
    14·2 answers
  • Xsquared+11x+28+xsquared+13x+40
    13·1 answer
  • PLEASE HELP TIMED
    6·2 answers
  • The answer please..:.....
    12·1 answer
  • Why do biologists have taxonomic systems?
    9·2 answers
  • If 70% of college students say they have a job what is the probability that 3 randomly selected college students say they have a
    12·1 answer
  • Plsss help ASAP thxs
    11·2 answers
  • Complete the congruent statement
    8·1 answer
  • John has 333 colored ribbons described below.
    7·2 answers
  • True or false? The point (−5, 0) lies on the y-axis.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!