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
NARA [144]
2 years ago
9

What is the equation of the line in slope-intercept form?

Mathematics
1 answer:
inessss [21]2 years ago
7 0

Answer:

y = x - 9

Step-by-step explanation:

the line has a slope of 1 so you do not have to include it in the equation and it crosses the y-axis at -9 so the y-intercept is -9

You might be interested in
Find the equation of the graphed line.
GrogVix [38]

Answer:

  a.  y = -1/2x - 2

Step-by-step explanation:

The correct answer choice can be determined by finding the slope of the line. The slope is the ratio of rise to run.

__

<h3>slope</h3>

The x-intercept is 4 units left of the y-axis. As the line "runs" those 4 units, it "rises" -2 units to intercept the y-axis at -2. The slope of the line is ...

  m = rise/run = -2/4 = -1/2

In the slope-intercept form of the equation of a line, the slope is the coefficient of x. This information is sufficient to let us choose the first answer choice.

__

<h3>equation</h3>

The slope-intercept equation is ...

  y = mx +b . . . . . . . slope m, y-intercept b

We know the slope is -1/2, and the y-intercept is where x=0, at y=-2. Then the equation is ...

  y = -1/2x -2 . . . . . matches choice A

_____

<em>Additional comment</em>

When answering multiple-choice questions, you only need to do enough work to tell which answers are <em>not</em> viable.

When we plot the points, we see that the line has negative slope. (eliminates choice C). The slope is shallow, rather than steep (the x-intercept is farther from the origin than the y-intercept), so the magnitude of the slope is less than 1 and choices B and D are eliminated.

8 0
1 year ago
Leah likes to stretch 5 minutes for every 10 minutes of dancing. How many minutes should she stretch if she is doing a 50 minute
tangare [24]
Let's set up a proportion.
5/10=?/50
We know that ten times 5 equals 50, so we can multiply the numerator, 5, by 5 to get our answer (what you do to the denominator, you must also do to the numerator).
5x5=25
The answer is 25,
7 0
3 years ago
Which equation has a vertex at (3,-2) and directrix of y = 0?
bija089 [108]

Answer:

<h3>C: y+2=-1/8(x-3)^2</h3>

Edge 2021

4 0
2 years ago
You know whats up, please help me ahha.
Rom4ik [11]

Answer:

0.07

Step-by-step explanation:

     0.07  - quotient

  ____

4/0.28     - divided

l

divisor

4 0
2 years ago
The length of a rectangular frame is 15 inches, and the width of the frame is 88 inches. What is the length of a diagonal of thi
qaws [65]

Answer:

about 89.27 inches

Step-by-step explanation:

This is a right triangle question

c^2 = a^2 + b^2

c^2 = 15^2 + 88^2

c^2 = 225 + 7744

c^2 = 7969

Take the square root of both sides

c = 89.2692556259

c ≈ 89.27 inches

5 0
3 years ago
Other questions:
  • 3x+2=7x+6 what is x​
    10·2 answers
  • An object travels 4/5 miles in one-half hour. Waht is its speed in miles per hour?
    14·1 answer
  • What are all the common factors of 15 ,45, 90
    10·1 answer
  • 7.
    8·2 answers
  • 322/14 .....plzzzzzzzzzzzzzzzzzzzzzzz
    11·2 answers
  • Mirna earned $120 baby-sitting during the spring break. She needs to save $90 for the German Club trip. She wants to spend the r
    15·1 answer
  • A
    7·1 answer
  • PLSPLS HELP ME ILL GIVE BRAINLIEST
    6·1 answer
  • The ceilings in Roberto's house are 14 feet high. How many meters high are the ceilings? Do not round your answer.
    12·2 answers
  • According to data given in this table find percentage of absentees on friday
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!