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
qwelly [4]
3 years ago
7

(8,9), X + 8y = 9 Help me please

Mathematics
1 answer:
Leokris [45]3 years ago
7 0

Answer:

slope of -1/8

and it crosses:

(3,5)

.

Plug the above data into the "point-slope" form:

y - y1 = m(x - x1)

y - 5 = (-1/8)(x - 3)

y - 5 = (-1/8)x + 3/8

y = (-1/8)x + 3/8 + 5

y = (-1/8)x + 3/8 + 40/8

y = (-1/8)x + 43/8

Step-by-step explanation:

?

You might be interested in
Describe and correct the error in writing an equation of the line shown
Rudiy27

Answer:

y  = -\frac{3}{5}x+4

Step-by-step explanation:

Given:

(x_1,y_1) = (0,4)

(x_2,y_2) = (5,1)

The attachment completes the question

From the attachment, the slope of the line was calculated as:

m = \frac{1-4}{0-5}

This step is inaccurate because the slope of a line is calculated using

m = \frac{y_2-y_1}{x_2-x_1}

Which gives

m = \frac{1-4}{5-0}

m = \frac{-3}{5}

m = -\frac{3}{5}

The line equation is then calculated using:

y -y_1 = m(x - x_1)

Substitute values for m, x1 and y1

y - 4 = -\frac{3}{5}(x - 0)

y - 4 = -\frac{3}{5}(x)

Open bracket

y - 4 = -\frac{3}{5}x

Make y the subject

y  = -\frac{3}{5}x+4

6 0
2 years ago
What is the x-intercepts of the graph of y = 12x-5x-2
hammer [34]
Y = 12x - 5x - 2

first simplify the equation by subtracting like terms (in this case):

12x - 5x = 7x

y = 7x - 2

Since you are finding the x, you must isolate the x. Do the opposite of PEMDAS.(Note: because there is a equal sign, what you do to one side, you do to the other)

y = 7x - 2

y (+2) = 7x - 2 (+2)
y + 2 = 7x
(y + 2)/7 = 7x/7

x = (y + 2)/7


x = (y + 2)/7 is your answer

hope this helps
8 0
3 years ago
Read 2 more answers
Solve for y.<br> 8y-3y=40
Airida [17]

Answer:

8

Step-by-step explanation:

8y-3y=40

5y. = 40

y. =8

the value of y is 8.

...

5 0
2 years ago
Read 2 more answers
20= -x + (x squared)<br><br> solve for x
MArishka [77]

Answer:

Step-by-step explanation:

x = 5

x= -4

3 0
2 years ago
Read 2 more answers
Which is not an equation of the line going through (6, 7) and (2, –1)?
garri49 [273]
Answer - D.

you basically find the equation of the line first and eliminate the wrong answers...

Strategy:  before u do any of this, label your coordinates as (X1,Y1) and (X2,Y2) and u can choose any of ur points to be as x1 or x2 or y1 or y1...
basically, I'll choose (6,7) as (x1,y1) and (2,-1) as (x2,y2). SO,

First you have to  find the gradient (m) of the line.
  you do this by using the formula m = Y2-Y1 / X2-X1 (where '/' is division sign) ....
Put the numbers in their respective places and your gradient will be 2x. we put the x after our number to represent it as a gradient as the straight line formula is y = mx+c and you've found the m.
NOW.
use the formula Y-Y1=m(x-x1) to find the equation of the line.Again u can use any Y1 and X1 here but remember your m is 2

replace the digits and solve...Hopefully you'll get sth like this if you use the points (6,7):
Y-7 = 2(x-6) ....
y=2x-12+7...
Y=2x-5! <<<< this is your straight line equation!
Now all u gotta do is rearrange all your options into y = mx+c.
D. is incorrect as it gives us y=2x+5 and not y = 2x-5 unlike the others 
 

Hope you get it!




7 0
3 years ago
Other questions:
  • one way to identlfy congruent triangles is to prove their matching sides have the same measure. triangle CDE has vertices at (1,
    5·1 answer
  • Lisa is loading 75 chairs into a truck. If h represents the number of chairs that she can carry in one load, which
    9·2 answers
  • 212.809 rounded to nearest hundreth
    12·2 answers
  • What function does the graph represent? PLESE IM DESPERATEEEEE :((
    9·1 answer
  • Solve <img src="https://tex.z-dn.net/?f=a%5E%7B3%7D" id="TexFormula1" title="a^{3}" alt="a^{3}" align="absmiddle" class="latex-f
    6·2 answers
  • What is the 7th letter of the alphabet?
    11·2 answers
  • What are the coordinates (x, y) at which the graphs of 2x + 3y = 12 and 2x - y = 4 intersect?
    11·2 answers
  • POSSIBLE POINTS 100
    7·2 answers
  • I am having a hard time on solving this question x4−85=−92 does someone know how to explain it?
    9·2 answers
  • PL has endpoints P(4, −6) and L(−2, 1). The segment is translated using the mapping (x, y) → (x 5, y). What are the coordinates
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!