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
Alenkasestr [34]
2 years ago
5

What is an equation of the line that passes through the point (-7,-6) and is parallel to the line x-y=7?

Mathematics
1 answer:
zloy xaker [14]2 years ago
5 0

Answer:

y = x + 1

Step-by-step explanation:

Step 1: Find the slope.

<u>Parallel lines have the same slope.</u> That means that the line we are seeking is going to have the same slope as line x - y = 7.

To find the slope of the line x - y = 7 let's change it to the slope-intercept form.

<u>Slope-Intercept Form</u>

y = mx + b

m ... slope

b ... y-intercept

Let's change the equation of the parallel line to slope-intercept form (isolate y).

x - y = 7

Add y on both sides.

x - y + y = 7 + y

x = 7 + y

Subtract 7 on both sides.

x - 7 = 7 + y - 7

x - 7 = y

y = x - 7

Let's read the slope from the equation.

Instead of y = x - 7 we can write y = 1x -7.

Now it's obvious that m (slope) is 1.

m = 1

So far, our equation of the line is:

y = 1x + b

which is te same as

y = x + b

Step 2: Find y-intercept.

To find out y-intercept (b), we substitiute the point (-7, -6) in the equation. Points are in form (x, y) so -7 is x and -6 is y.

y = x + b

-6 = -7 + b

Solve for b.

1 = b

Step 3: Substitute slope and y-intercept in general formula for slope-intercept form of the line.

Now substitute m and b in slope-intercept form y = mx + b.

m = 1

b = 1

Equation of the line:

y = x + 1

You might be interested in
Choose the inequality that could be used to solve the following problem.
lorasvet [3.4K]

Answer:

 3x ≤ -6

Step-by-step explanation:

"At most" means "less than or equal to." If x represents the number, then you have ...

  (three) times (a number) (is at most) negative 6 . . . . . English

      3       ·         x                ≤           -6 . . . . . . . . . . . . . . . . Math

__

  3x ≤ -6

5 0
3 years ago
Factor trinomial x^2n+10x^n+16​
iragen [17]

Answer:

\large\boxed{x^{2n}+10x^n+16=(x^n+2)(x^n+8)}

Step-by-step explanation:

\text{Use}\ (a^n)^m=a^{nm}.\\\\x^{2n}+10x^n+16=(x^n)^2+10x^n+16=x^n\cdot x^n+2x^n+8x^n+16\\\\=x^n(x^n+2)+8(x^n+2)=(x^n+2)(x^n+8)

8 0
3 years ago
How to find the area of this figure
stiv31 [10]

Answer:

45 square units.

Step-by-step explanation:

Applying the pythagoras theorem:

Base of the bigger triangle = \sqrt{15^2 - 9^2} = \sqrt{144} = 12 units

Area of a triangle is given by \frac{1}{2} × base × height

The area of the bigger triangle is  \frac{1}{2} × 12 × 9 = 54 square units.

The area of the smallest triangle is  \frac{1}{2} × (12 - 10) × 9 = 9 square units.

The area of the figure( required triangle) is 54 - 9 = 45 square units.

3 0
3 years ago
Erik buys 2.5 pounds of cashews.If each pound of cashews cost $7.50, how much will he pay for the cashews
spin [16.1K]
Erik will pay $18.75 for the cashews.
5 0
3 years ago
Find the equation of the straight line which is parallel to 2x + 3y = 11 and such that the sum of the intercepts on axes is 15.
Burka [1]

Answer: 2x+3y=18



Step-by-step explanation: Any line parallel to 2x+3y+11=0 is the form 2x+3y =k this can also be written as x/(k/2)+y/k/3 =1  this is the line whose sum of the intercepts is 15, then k/2 +k/3 = 15 after solving we get that indeedk= 18.

5 0
3 years ago
Other questions:
  • Ryan is trying to determine whether 2.7x – 5.9 is equivalent to 2.8x – 5.9. To test this, he substitutes 0 for x into both expre
    7·2 answers
  • <img src="https://tex.z-dn.net/?f=%283%20%2B%20%20%5Csqrt%5B%5D%7B2%7D%20%29%20%7B%7D%5E%7B2%7D%20" id="TexFormula1" title="(3 +
    7·1 answer
  • What is the difference between a terminating and a repeating decimal?
    14·1 answer
  • The product of 2 more than a number and 10 is 36 more than 8 times the number. What is the number?
    9·1 answer
  • Place each number on the number line and round to the nearest 1,000
    7·1 answer
  • Could Someone Please answer this? Algebra 1<br> I will mark you brainliest
    12·2 answers
  • Help pleas I will give brainliest
    10·2 answers
  • A pair of parallel lines are translated. Which of these could be the result?
    7·2 answers
  • Which sum is equivalent to 7/9 + 5/6?
    13·1 answer
  • Riley makes a mistake in step 2 while doing her homework. what was her mistake? startfraction x over x squared minus 5 x 6 endfr
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!