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
kompoz [17]
3 years ago
13

Write an equation in slope–intercept form for a line that passes through (4, 0) and is perpendicular to y = –2x.

Mathematics
1 answer:
sergeinik [125]3 years ago
7 0

Answer:


Step-by-step exp1. the equation y + 2 = -4(x - 1) needs to be in slope-intercept form. it makes it easier to solve. first, distributive property. y + 2 = -4x + 4 now you can subtract 2 from both sides to isolate y. new equation: y = -4x + 2 now you can graph this equation and the point (1, -3). we know the slope of the equation has to be the same so we can go up 4 and 1 to the left from (1, -3). this new point is (0, 1). so the answer is: y = -4x + 1


2. the graphs of the equations y = -2x + 3 and y = -2x + 7 are parallel.

i changed 2x + y = 7 to y = -2x + 7 by subtracting 2 from both sides. (standard form to slope-intercept form) then, i determined they were parallel by graphing them. you can visually see they're parallel to each other.


3. y + 1 = 2(x - 3) <- standard form. to transform this into slope-intercept form, you have to start by using the distributive property. so, do 2 times x and 2 times -3. new equation: y + 1 = 2x - 6 now you add 6 to both sides. new equation: y + 7 = 2x all you have to do now is get this in slope-intercept form. to do this, just subtract 7 from both sides. new equation: y = 2x - 7


4. the bike path is going to be parallel to main street. it is also going to pass through the park entrance (0, 4). the equation of main street is y = 2x - 3

we know that the park entrance is (0, 4) so the equation is going to look like this so far: y = x + 4 we also know the slope of the equation of main street is 2x and for the bike path to be parallel the slope needs to be the same. therefore, the equation of the line that represents the bike path is y = 2x + 4.


5. the statement: two lines with the same slope and different y-intercepts are perpendicular. is never true. this is because two lines with the same slope and different y-intercepts are parallel, not perpendicular.


i know this is a lot to read, but i like explaining things just to make sure you understand everything. the answers are in bold. i hope this helps! 



You might be interested in
Find the mean of the data in the bar chart below.
Snowcat [4.5K]
<h2>Answer:</h2>

12

<h2>Step-by-step explanation:</h2>

<u><em>The mean is also the average.</em></u>

Add up all the number of students all together:

12+13+14+9

48

Now, Divide the total amount of students (48) by the amount of numbers you added (in this case, 48/4 because we added 4 numbers wich are 12+13+14+9)

The average amount of students is 12

7 0
3 years ago
4.) Find the quotient<br><br> 20 ÷ 1/4<br><br><br> A.) 5<br> B.) 40<br> C.) 10<br> D.) 80
Mazyrski [523]

1/4 of 20 is 5

A is the answer

7 0
3 years ago
Jon has to pay $7.50 admission for the skating rink and $1.50 per hour to rent rollerblades. Write an equation for the cost (y)
Nata [24]

Answer:

y = 7.50 + 1.50x

Step-by-step explanation:

The admission costs $7.50 and after x hours Jon has to pay $1.50*x. Then the cost y in dollars is

y = 7.50 + 1.50x where x is the number of hours.

4 0
3 years ago
Three classes. Of third graders are going to the zoo. Ms. Noels class has 10 students. Mr. Grubbs class has 9 students, and Ms.
liq [111]

Answer:

If the children divide evenly onto 3 buses, there will be 11 children on each bus

Step-by-step explanation:

Add all 3 classes to ind total amount of students

Ms. Noels class has 10 students

Mr. Grubbs class has 9 students

Ms. Ackerman's class has 14 students

<u>Total Students:</u> 10 students + 9 students + 14 students

33 total students

Dividing 33 students in 3 busses is 33 / 3 which equals 11

4 0
2 years ago
Suppose you are going to graph the data in the table below. What data should be represented on each axis and what should the inc
Greeley [361]
Independent variable on x-axis (value you can choose) dependent variable on y-axis (corresponding value for the value you have chosen) You can the hours and the distance traveled is a function of those hours. also, I'd go in increments of 5. More accurate than increments of 15. The answer is D! <span><span>
Hope this helps!</span></span>
4 0
3 years ago
Other questions:
  • PLEASE HELP ME!!!! thank u
    15·2 answers
  • Need help answering question 4
    5·1 answer
  • Leilani dropped an acorn from her tree house. It took 1.1 seconds to hit the ground below. Find the height in feet from which sh
    14·1 answer
  • An investment company pays 7​% compounded semiannually. You want to have $24000 in the future. ​ How much should you deposit now
    7·1 answer
  • Which algebraic expression is equivalent to the expression below? 7 (5x+8) -6
    12·1 answer
  • Help Plz
    15·1 answer
  • NEED HELP ASAP!!! 16 points !!!
    9·1 answer
  • What is the value of x?<br><br> Enter your answer in the box.
    7·1 answer
  • Answer with explanation please
    10·1 answer
  • A $10 book is 50% off. What is the cost?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!