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
SVETLANKA909090 [29]
3 years ago
15

What is the equation of the line through (2,3) and (0,-1)\ WILL GIVE BRAINLIEST

Mathematics
1 answer:
Artyom0805 [142]3 years ago
6 0

Answer:

y=2x−1

Explanation:

First, we need to determine the slope of the line. The formula for determining the slope of a line is:

m=y2−y1x2−x1

where m is the slope and the x and y terms are for the points:

(x1,y1) and (x2,y2)

For this problem the slope is:

m=3−−12−0

m=3+12m=42m=2

Now, selecting one of the points we can use the point slope formula to find the equation.

The point slope formula is:

y−y 1=m(x−x1)

Substituting one of our points gives:

y−1=2(x−0)y+1=2x

Solving for y

to put this in standard form gives:

y+1−1=2x−1

y+0=2x−1

y=2x−1

You might be interested in
the variable M varies directly as the cube root of n. when n equals 27 m equals to 216. which equation can be used to find other
Aleks04 [339]

Answer:

A

Step-by-step explanation:

if you divide m by n you get 8

5 0
3 years ago
) f) 1 + cot²a = cosec²a​
notsponge [240]

Answer:

It is an identity, proved below.

Step-by-step explanation:

I assume you want to prove the identity. There are several ways to prove the identity but here I will prove using one of method.

First, we have to know what cot and cosec are. They both are the reciprocal of sin (cosec) and tan (cot).

\displaystyle \large{\cot x=\frac{1}{\tan x}}\\\displaystyle \large{\csc x=\frac{1}{\sin x}}

csc is mostly written which is cosec, first we have to write in 1/tan and 1/sin form.

\displaystyle \large{1+(\frac{1}{\tan x})^2=(\frac{1}{\sin x})^2}\\\displaystyle \large{1+\frac{1}{\tan^2x}=\frac{1}{\sin^2x}}

Another identity is:

\displaystyle \large{\tan x=\frac{\sin x}{\cos x}}

Therefore:

\displaystyle \large{1+\frac{1}{(\frac{\sin x}{\cos x})^2}=\frac{1}{\sin^2x}}\\\displaystyle \large{1+\frac{1}{\frac{\sin^2x}{\cos^2x}}=\frac{1}{\sin^2x}}\\\displaystyle \large{1+\frac{\cos^2x}{\sin^2x}=\frac{1}{\sin^2x}}

Now this is easier to prove because of same denominator, next step is to multiply 1 by sin^2x with denominator and numerator.

\displaystyle \large{\frac{\sin^2x}{\sin^2x}+\frac{\cos^2x}{\sin^2x}=\frac{1}{\sin^2x}}\\\displaystyle \large{\frac{\sin^2x+\cos^2x}{\sin^2x}=\frac{1}{\sin^2x}

Another identity:

\displaystyle \large{\sin^2x+\cos^2x=1}

Therefore:

\displaystyle \large{\frac{\sin^2x+\cos^2x}{\sin^2x}=\frac{1}{\sin^2x}\longrightarrow \boxed{ \frac{1}{\sin^2x}={\frac{1}{\sin^2x}}}

Hence proved, this is proof by using identity helping to find the specific identity.

6 0
3 years ago
A group pre-orders 9 tickets for a sightseeing tour, even though they don't have the money to pay for them yet. Each ticket cost
DerKrebs [107]
I believe answer is 423$
3 0
3 years ago
Suppose that 20% of students at high school A and 18% of students at high school B participate on a school athletic team. Indepe
daser333 [38]

Answer:

let me answer this and i will come back

Step-by-step explanation:

7 0
3 years ago
AC = 12 in the image shown. Is BC tangent to circle A?
Elenna [48]
A) No, because 62 + 9 = 122
6 0
3 years ago
Other questions:
  • The graph of a function f(x)=5to the power of x -5 contains the point (2,y) what is the value of y
    11·1 answer
  • PLEASE HELP ME!!!!! INEED HELP ON THIS!!!
    7·1 answer
  • I will give you brainlist!
    6·1 answer
  • using integer to describe the situation 12 protons and an atom blank 18 electrons around an atom blank​
    9·1 answer
  • Help me to get brainest everyday if u friend me
    13·2 answers
  • Nigel has 66 pens kat has 1/3 of the number of pens Nigel have calculate the number of pens that have altogether
    12·1 answer
  • Factor out the greatest common factor. 10a3b−6a2b2
    13·1 answer
  • 5 3/4 divided by 2 1/4
    6·1 answer
  • Find the inverse of g(x)=4/x+2
    15·1 answer
  • From the graph below, what are the two intervals that the function is increasing on?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!