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
ArbitrLikvidat [17]
3 years ago
5

Determine the standard form of the equation of the line that passes through ( -5,0 ) ( 0 ,-9)

Mathematics
2 answers:
Alecsey [184]3 years ago
6 0

Answer:

B

Step-by-step explanation:

insens350 [35]3 years ago
5 0

The general form for a line through two points (a,b) and (c,d) is

(c-a)(y-b)=(d-b)(x-a)

This is better than the slope forms because it works in the no slope case, as does the standard form.

If you haven't seen it before, it works because when (x,y)=(a,b) we get (c-a)(b-b)=(d-b)(a-a), both sides zero, and when (x,y)=(c,d) we get (c-a)(d-b)=(d-b)(c-a), clearly equal sides.

Here we have

(0 - -5)(y - 0) = (-9 - 0)(x - - 5)

5y = -9(x+5)

5y = -9x - 45

9x + 5y = -45

Ironically there are two standards for standard form; one with the constant alone on the right and one with the whole thing equal to zero.  I like the constant alone.

Answer: 9x + 5y = -45

Check:

We check each point is on the line

(-5,0)

9(-5) + 5(0) = -45, good

(0, -9)

9(0) + 5(-9) = -45, good again


You might be interested in
Y = f(x) + 3<br> describe the functions that take place
hram777 [196]

Answer:

A function can be reflected about an axis by multiplying by negative one. To reflect about the y-axis, multiply every x by -1 to get -x. To reflect about the x-axis, multiply f(x) by -1 to get -f(x).

Step-by-step explanation:

8 0
3 years ago
Help me answer this please:)
Dmitrij [34]

Answer:

A and B

Step-by-step explanation:

\frac{7x+6}{2}\leq 3x+2 < ==multiply\ both\ sides\ by\ 2\\2(\frac{7x+6}{2}\leq 3x+2)\\\\7x+6\leq6x+4 < ==subtract\ -6x\ from\ both\ sides\ \\-6x \ \ -6x\\\\x+6\leq4 < ==subtract\ 6\ from\ both\ sides\\-6 \ \ \ -6\\\\x\leq-2 < ==answer\ should\ be\ anything\ less\ than\ or\ equal\ to\ -2

Now, look at your answer choices, which options are less than or equal to -2?

x ≤ -2, Check your answers:

A. -3 ≤ -2?

This statement is correct (-3 is < -2)

B. -2 ≤ -2 <== our original answer

This statement is correct (-2 is = to -2)

C. -1 ≤ -2

This statement is incorrect (-1 is > -2, not ≤ -2)

D. 0 ≤ -2

This statement is incorrect (0 is > -2, not ≤ -2)

E. 1 < -2

This statement is incorrect (1 is > -2, not ≤ -2)

Therefore, the correct options are A and B

Hope this helps!

6 0
2 years ago
Which of the following units for mass is an SI unit?
s2008m [1.1K]
Kilogram is an SI unit for mass.
Ounce and pound refer to American system for measuring things, and decakilogram is not the "basic" unit, but kilogram is.
5 0
3 years ago
Read 2 more answers
Martha measures the big prize wheel on a game show and calculates that it has a circumference of 12.56 yards. What is the prize
trasher [3.6K]
The radius is 2 yards... 
Formula for circumference is \pi r^2 so divide your circumference by 3.14 or pi and you get 4 the square root of 4 is 2. 

Hope this helps!

7 0
3 years ago
5y + 3 &gt; −7y + 13 Multi-step linear inequalities
Artemon [7]

Answer:

y > \frac{5}{6}

Step-by-step explanation:

Given

5y + 3 > - 7y + 13 ( add 7y to both sides )

12y + 3 > 13 ( subtract 3 from both sides )

12y > 10 ( divide both sides by 12 )

y > \frac{10}{12} , that is

y > \frac{5}{6}

3 0
3 years ago
Other questions:
  • I need answers pls I have a test right now
    11·1 answer
  • Which figure represents an undefined term?<br> Х<br> Х<br> Х<br> w<br> Y<br> х
    9·1 answer
  • Use the number line to solve 235 +123
    8·1 answer
  • Josh sold 4 more boxes of candy for the school fundraiser than Jenny. The sum was 22 of the boxes they sold. How many boxes did
    11·1 answer
  • The random variable X is exponentially distributed, where X represents the time it takes for a person to choose a birthday gift.
    7·1 answer
  • Which of the following ratios forms a proportion with 4/15 ?
    7·2 answers
  • PLS HELP! ANSWER ONLY IF YOU KNOW!
    13·1 answer
  • I need help on these questions
    8·1 answer
  • A line with a slope of 9/7 passes through the point (7, 14).What is its equation in slope -intercept form?
    8·1 answer
  • Please help me i'm so bad at math
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!