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
kicyunya [14]
3 years ago
8

What is the equation, in slope-intercept form, of the line that is perpendicular to the line

Mathematics
1 answer:
Len [333]3 years ago
4 0

Answer:

y = x - 1 (third answer choice)

Step-by-step explanation:

From the given we see immediately that the slope of this line is -1.  The slope of a line perpendicular to this one is +1, which is the negative reciprocal of -1.  The slope-intercept form is y = mx + b.  To find b, the y-intercept, we make the following substitutions:  m = -1, y = -2, x = -2:

-2 = +1(-2) + b, or +1 = 2 + b, or b = -1

and so the desired equation is y = x - 1 (third answer choice)

You might be interested in
Choose the correct simplification of the expression (−2x + 8y)(9x − 3y).
Romashka-Z-Leto [24]
For these kinds of expressions use FOIL (first, outside, inside, last).

-2x • 9x = -18x^2
-2x • -3y = 6xy
8y • 9x = 72 xy
8y • -3y = -24y^2

Now combine them all:

-18x^2 + 78xy - 24y^2
6 0
3 years ago
Read 2 more answers
sarah uses a recipe to make 2 gallons of her favorite mixed-berry juice. the containers she plans to use to store the juice have
BabaBlast [244]
1 gallon = 8 pints, so  2 gallons = 16 pints.
If each container can hold one pint, then she will need 16 containers.
7 0
2 years ago
Read 2 more answers
A group of students are meeting in the cafeteria. 70 students have already arrived. This is 35% of the group. How many are in th
sesenic [268]
There are 200 students in the group.

To find this, you divide 70 by 0.35 (35%). This will give you 200. To check this, multiply 200 by 0.35 and you will get 70. Thus making 200 the answer.

I hope this helps!
4 0
2 years ago
Read 2 more answers
Please help I am so confused
Ede4ka [16]

The total cost when 881 minutes is used is $477.50.

<h3>What are the equation that model the question?</h3>

a + 480b = 277 equation 1

a + 990b = 532 equation 2

Where:

  • a = flat fee
  • b = variable fee

<h3>What is the flat fee and the variable fee?</h3>

Subtract equation 1 from equation 2

510b = 255

b = 255 / 510

b = $0.50

In order to determine the flat fee, substitute for b in equation 1

a + 480(0.5) = 277

a + 240 = 277

a = 277 - 240

a = $37

<h3>What is the total cost when 881 minutes is used?</h3>

Total cost = flat fee + (variable cost x number of minutes spoken)

$37 + (881 x 0.5) = $477.50

To learn more about simultaneous equations, please check: brainly.com/question/25875552

#SPJ1

7 0
1 year ago
Factor the trinomial:<br><br> 2x^2+13x+21
tankabanditka [31]

Answer:

(2x + 7) \times (x + 3)

Step-by-step explanation:

{2x}^{2}  + 13x + 21

{2x}^{2}  + 7x + 6x + 21

x \times (2x + 7) + 3(2x + 7)

= (2x + 7) \times (x +  3)

6 0
2 years ago
Other questions:
  • HELP! will mark BRAINILEST !
    12·1 answer
  • Which point is collinear with points B and C?  
    6·1 answer
  • Help!!!which of the following best describes the algebraic expression 10x+2
    13·2 answers
  • What is the conjugate of the square root of -15 ? ...?
    14·1 answer
  • Use the formula V = s³, where V is the volume and s is the edge length of the cube, to solve this problem.A cube-shaped bin has
    9·1 answer
  • Solve the quadratic equation d^2=5d using factoring.
    7·1 answer
  • The sentence , two less than the product of two and a number is greater than 5 times the opposite of the number, translates to w
    14·1 answer
  • WHAT I KNOW?
    14·2 answers
  • Brendan has six less than five times the number of pencils that Riley has. Let p represent the number of pencils Riley has. Writ
    6·1 answer
  • A plane takes off at 12:50 pm from a place airport. It is landed at another airport at 2:05pm how long was the flight? ​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!