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
slega [8]
3 years ago
10

I need help learning about slopes of lines

Mathematics
1 answer:
pochemuha3 years ago
4 0
To find the slope use the rate of change in y/the rate of change in x or you can use y2-y1/x2-x1
Use this website to help you. 
http://www.coolmath.com/precalculus-review-calculus-intro/precalculus-algebra/01-graphing-slopes-of-lines-01
You might be interested in
The sales commission is 10% at an electronic store. How much does Saul have to sell in 22 hours to earn $12.50 per hour from com
Anna71 [15]
I think it’s $1,250 in 22 hours
3 0
3 years ago
Read 2 more answers
Which representation of a transformation on a coordinate grid does not preserve congruence?
Alex17521 [72]

Answer:

B

Step-by-step explanation:

Consider all options:

A. Transformation with the rule

(x,y)\rightarrow (x,-y)

is a reflection across the x-axis.

Reflection across the x-axis preserves the congruence.

B. Transformation with the rule

(x,y)\rightarrow \left(\dfrac{7}{8}x,\dfrac{7}{8}y\right)

is a dilation with a scale factor of \frac{7}{8} over the origin.

Dilation does not preserve the congruence as you get smaller figure.

C. Transformation with the rule

(x,y)\rightarrow (x+6,y-4)

is a translation 6 units to the right and 4 units down.

Translation 6 units to the right and 4 units down preserves the congruence.

D. Transformation with the rule

(x,y)\rightarrow (y,-x)

is a clockwise rotation by 90^{\circ} angle over the origin.

Clockwise rotation by 90^{\circ} angle over the origin preserves the congruence.

3 0
3 years ago
While on a business trip to Brookfield, Haley treated her co-workers to a meal that cost $50. Haley knew that when the bill came
frosja888 [35]

Answer:

$66

Step-by-step explanation:

The meal cost $50 without taxes.

The cost of tax:

$50*%14= $7

so she will pay a $7 tax

Also, she wants to tip %18 of the original $50 so:

$50*%18= $9

so she will tip $9

$50 + $7 + $9 = $66

8 0
3 years ago
NEED HELP ASAP PLEASE WITH #9 and #10!!
ICE Princess25 [194]
9) Because the total number of pencils is 180 and you will use them up in 30 days, the equation will have to equal 0 total pencils when 30 is substituted in for the time factor, or x. This already takes our choice 3 because it doesn’t meet this criteria.
The answer to how many pencils in 20 days could be answered by plugging in 20 for x. Choice 4 cannot work because it results in a negative number of pencils. Choices 1 and 2 use the same equation, so by plugging in 20 it is clear choice 2 is the correct answer.

10) A line parallel to the go en equation would have the same slope, -3, which means choices 1 and 4 are out. Plug in (-2,5) into both choices 2 and 3. Plugging -2 into x in choice 2 gives -5, and in choice 3 gives 5 for the y value. Therefore choice 3 is correct.
8 0
3 years ago
I'm saving up for Ariana Grande meet & greet tickets (which are like $1000 lol)
mr_godi [17]

Answer:

Maybe make a  Y_O_U_T_U_B_E channel

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • ABC has vertices A(–3, –4), B(1, 5), and C(4,1). ABC is translated so that B’ is located at point (–3, 2). State the coordinates
    9·2 answers
  • We are given a coin for which the probability of heads is p (0 < p < 1) and the probability of tails is 1 - p. consider a
    15·1 answer
  • what is the unknown number in the equation 23 decreased by the product of 44 and an unknown number is 199
    12·2 answers
  • An equation _____ has one solution.<br><br> Always <br><br> Sometimes <br><br> Never
    5·1 answer
  • Statisticians use ______ scores to divide the ______ under a curve the way people use a knife to cut pizza. Just as the pizza is
    15·1 answer
  • Please help me with this
    12·2 answers
  • PLS HELP W ANGLE OF ISOLATION ILL GIVE BRAINLIEST I NEED ANSWER WITHIN 5 MINS
    14·2 answers
  • Divide (6x3y2 + 12x2y - 8xy) by (2xy)
    11·1 answer
  • By the end of year 8, demarco and tanya would have to pay a final payout of $120,887. $130,900. $143,152. $154,768.
    14·2 answers
  • Two cars leave towns 750 kilometers at the same time and travel toward each other. One car's rate is 12 kilometers per hour less
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!