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
ElenaW [278]
3 years ago
9

Help please I get y=mx+b but I'm not sure how to do this

Mathematics
2 answers:
Fofino [41]3 years ago
8 0

(3,4)  (9,7)

to find the slope

m = (y2-y1)/(x2-x1)

  = (7-4)/(9-3)

3/6

1/2

The slope is 1/2

point slope form

y-y1 = m(x-x1)

y-4 = 1/2(x-3)

distribute

y-4 = 1/2x -3/2

add 4 to each side

y = 1/2 x -3/2 + 4

y = 1/2 x -3/2 + 8/2

y = 1/2 x + 5/2

this is in slope intercept form

zhenek [66]3 years ago
8 0

y = \frac{1}{2} x + \frac{5}{2}

the equation of a line in slope-intercept form is

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (3, 4 ) and (x₂, y₂ ) = (9, 7 )

m = \frac{7-4}{9-3} = \frac{3}{6} = \frac{1}{2}

y = \frac{1}{2} x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (3, 4 ) then

4 = \frac{3}{2} + c ⇒ c = \frac{5}{2}

y = \frac{1}{2} x + \frac{5}{2} ← equation in slope-intercept form




You might be interested in
nter an equation and an answer to the following question: What is the original list price if the discount is $25 and the discoun
castortr0y [4]

Let us set up an equation, to determine the list price. X represents the original price

.12 * x = 25

In order to solve for X, you must divide .12 from both sides

x = 25/.12

After you divide, you should get the number 208.33

25/.12 = 208.33

So, the original list price is $208.33

7 0
3 years ago
Read 2 more answers
I Really Need Help With This One Can Some One Plz Help Me?
Lapatulllka [165]
1.6²=1.6 times 1.6=2.56
4 0
3 years ago
Find the surface area for the following prisms.
liubo4ka [24]

Answer:

  • uixis9sugwhwo19wha

Step-by-step explanation:

isisisisisisi

7 0
3 years ago
Use the distributive property to simplify the expression.
zepelin [54]

Option D

Using the distributive property, -7(8x – 3) + x = -55x + 21

<em><u>Solution:</u></em>

Given that we have to use distributive property to simplify the given expression

Given expression is:

-7(8x – 3) + x

Let us first understand about distributive property

The distributive property lets you multiply a sum by multiplying each addend separately and then add the products.

<em><u>The distributive property is represented as:</u></em>

a(b + c) = ab + ac

Apply this property in given expression for -7(8x - 3)

-7(8x - 3) = (- 7 \times 8x) + (-7 \times -3)\\\\-7(8x - 3) = -56x +21

Apply the above result in given expression

-7(8x - 3) + x = -56x + 21 + x

Combine the like terms. Add -56x and x

-7(8x - 3) + x = -56x + 21 + x = -55x + 21\\\\-7(8x - 3) + x = -55x + 21

Thus the given expression is simplified. Option D is correct

6 0
3 years ago
Richard was earning $10/hr working for Diane’s landscaping company. Diane said that productivity was decreasing, so everyone had
pentagon [3]

Answer:

Richard is  making $9.6 per hour now

Step-by-step explanation:

Given:

Initial amount Richard was earning =  $10/hr

Due to lass in productivity 20% pay was cut

Amount Richard was earning after 20% pay cut =  $8/hour.

After few again due to increase in productivity Diane gave a 20% raise.

To Find:

How much is Richard making now = ?

Solution:

Let the amount that Richard is making now be x

Then

x =  8+  20% of 8

x = 8 + \frac{20}{100} \times 8

x = 8 + 0.2 \times 8

x = 8 + 1.6

x = 9.6

8 0
3 years ago
Other questions:
  • Rewrite the expression 2-bx2&lt;56 to get the variable b alone on one side of the equation.
    14·2 answers
  • If x = 10, y = 5, and z = 11, what is the tangent ratio for g°?
    12·2 answers
  • What is the graph of the inequality in the coordinate plane?<br><br> x ≥ 4
    15·2 answers
  • Help ASAP. A carpenter builds a ramp from the level ground to a platform that is 2 ft high. If the length of the ramp is 8 ft 6
    7·1 answer
  • Which of the following scenarios is not proportional.
    13·1 answer
  • Does this graph represent a function? Why or why not?
    6·1 answer
  • NEED HELP HELP Jada created the following t-chart when she solved an equation. What is<br> missing?
    5·1 answer
  • Drag each label to the correct location on the image.
    13·1 answer
  • Which list shows three solutions to the inequality?
    5·2 answers
  • The book store is having a sale on bookmarks. Each bookmark is on sale for $0.84. Each student in Ms. Duke's class decides to bu
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!