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
Vikki [24]
3 years ago
8

A is the point (-2, 0) and B is the point (0, 4).Find the equation of the straight line joining A and B.

Mathematics
1 answer:
Rus_ich [418]3 years ago
6 0

Answer:

y = 2*x + 4

Step-by-step explanation:

We know that a linear function can be written as:

y = a*x + b

Where a is the slope and b is the y-intercept.

We know that if this line passes through the points (x₁, y₁) and (x₂, y₂) the slope can be written as:

a = (y₂ - y₁)/(x₂ - x₁)

So, here we know that our line must pass through the points (-2,0) and (0, 4)

Then the slope of this line is:

a = (4 - 0)/(0 - (-2))

a = 4/2 = 2

Then our line is something like:

y = 2*x + b

Now, to find the value of b we can use one of these two points, for example if we use the point (-2, 0), we know that, when x = -2, we must have y = 0.

0 = 2*(-2) + b

0 = -4 + b

4 = b

Then the equation for our line is:

y = 2*x + 4

You might be interested in
the student council set a goal of raising at least $500 in flower sales. so far it has raised $415 .write an inequality to show
Nat2105 [25]
415 + d ≥ 500

I believe that's the inequality since they want to raise a minimum of $500 so that means it can be more than $500. Hope I helped.
4 0
3 years ago
Read 2 more answers
A local weather enthusiast wants to see if the last five summers have been warmer than normal for Eloy, Arizona. From the Nation
lys-0071 [83]

Answer:


Step-by-step explanation:

This is a question on hypothesis testing.

Population mean based on 30 year average for July was 90 with

a std deviation of 2.1

Sample of 5 shows average 93.5

To check whether sample average = population average

H0: x bar =90

Ha: x bar not equal 90(Two tailed test)

Test statistic = \frac{93.5-90}{\frac{2.1}{\sqrt{5} } }

=3.73

Since this lies outside the range (-1.96, 1.96) we reject null hypothesis

Hence we cannot say sample mean equals 90

5 0
3 years ago
Read 2 more answers
Observe the Function Below. f(x) = -8x2 + 7x3 + 2x – 5 Is the function a polynomial?​
marshall27 [118]

Answer:

Step-by-step explanation:

f(x) = -8x² + 7x³ + 2x - 5

     =  7x³ - 8x² + 2x - 5          This meets the definition of a polynomial

4 0
3 years ago
What is the surface area of a square pyramid that has a base length of 5 inches and triangular faces that are 9 inches tall
scZoUnD [109]

Answer:

115 in²

Step-by-step explanation:

SA = Area of triangular surfaces + area of the square base

SA= 2bh + b²

SA = 2(5)(9)+5²

SA = 90+25

SA = 115

7 0
3 years ago
Which is the sum of the 2 smallest angles in a right triangle?
Ilya [14]
A right triangle has one 90 angle.

The sum of the three angles of any triangle is equal to 180 degrees.

180-90= 90 degrees.
The answer is C.
5 0
3 years ago
Other questions:
  • Jasmine left the house at 7:10 am to go to work. She gets back at 6:35 pm.
    5·1 answer
  • What is the area of triangle FGH? Round your answer to the nearest tenth of a square centimeter.
    11·2 answers
  • Draw 2 lines to cut each triangle into the given shapes. 1 triangle and 2 trapezoids
    15·1 answer
  • How many square feet of outdoor carpet will we need for this hole plz help now
    12·1 answer
  • What is the absolute value of –7.5?
    5·2 answers
  • Determine whether each number is a perfect square. If it is a perfect square, write
    15·1 answer
  • So far monica has read 5 out of 6 of a book. She read the same nuber of pages each day gor 5days. What fraction of the book does
    10·1 answer
  • Mary bought 3 34 m of lace. She used 1 16 m of lace for her new dress. How much lace is left with her?
    9·1 answer
  • Solve the problem 5/n = 1.5/ 1.8
    10·2 answers
  • without actually calculating the cubes find the value of each of the following (-28)^3+(12)^3+(16)^3 ​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!