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Nonamiya [84]
3 years ago
14

Can anyone please help FAST! I’m looking for the correct answer and how you explain it! I’ll mark brainlist please and thank you

!

Mathematics
2 answers:
rosijanka [135]3 years ago
7 0
1a. Y = mx + b
Y = 2x + b
-2 = 2(5) + b
-2 = 10 + b, b = 12
Equation: y = 2x + 12

1b. Standard form: Ax + By = C
subtract 12 and y from both sides
2x - y = -12
Equation: 2x - y = -12
musickatia [10]3 years ago
4 0

Answer:

Part 1: y=2x-12

Part 2: 12=2x-y

Step-by-step explanation:

Given Information:

m (slope) = 2

There is a point: (5, -2)

PART 1

Solution: Use the formula:  y=m(x-x_{1} )+y_{1}

y=2(x-(5))+(-2)

y=2x-10-2

y=2x-12

PART 2

y=2x-12         (from part 1)

0=2x-y-12      

12=2x-y

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Write the equation of the line that passes through (3, 4) and (2, −1) in slope-intercept form. (2 points) a y = 3x − 7 b y = 3x
sashaice [31]

Answer: y = 5x − 11

Step-by-step explanation:

The equation of a straight line can be represented in the slope-intercept form, y = mx + c

Where c = intercept

Slope, m =change in value of y on the vertical axis / change in value of x on the horizontal axis represent

change in the value of y = y2 - y1

Change in value of x = x2 -x1

y2 = final value of y

y 1 = initial value of y

x2 = final value of x

x1 = initial value of x

The line passes through (3,4) and (2, -1),

y2 = - 1

y1 = 4

x2 = 2

x1 = 3

Slope,m = (- 1 - 4)/(2 - 3) = - 5/- 1 = 5

To determine the y intercept, we would substitute x = 3, y = 4 and m= 5 into

y = mx + c. It becomes

4 = 5 × 3 + c

4 = 15 + c

c = 4 - 15 = - 11

The equation becomes

y = 5x - 11

8 0
3 years ago
Write an expression for the sequence of operations. <br> Subtract 4 from x, double, and add 8.
Ivenika [448]
4-x=3
Double the 3 witch is =6
And add 8 witch is
6+8=14
3 0
3 years ago
In the figure below, BD and EC are diameters of circle P.
Zinaida [17]

Answer: 333 degrees

Step-by-step explanation:

8 0
3 years ago
Onya selected a pair of shoes for the regular price of $80. How much money will she save by using the 20% off coupon? Justify yo
professor190 [17]

Answer:

a. Savings =  \$16

b. Price = \$96

Step-by-step explanation:

Solving (a):

Price = \$80

Coupon = 20\%

Required

Determine her savings.

Savings = Coupon * Price

Savings = 20\% * \$80

Savings =  \$16

Solving (a):

Price = \$120

Coupon = 20\%

Required

Determine the price before tax

First, we need to determine her savings

Savings = Coupon * Price

Savings = 20\% * \$120

Savings =  \$24

The price before tax is calculated as follows:

Price = \$120 - \$24

Price = \$96

4 0
3 years ago
Abby went to the store to buy ice cream for her party. Each box costs $3. She has a coupon for 20% off her total. If Abby buys 3
ollegr [7]

Answer: 7.2$

hope it helps :)

step-by-step explanation:

Cost of each box = 3$

Cost of 3 boxes without 20% coupon = 9$

With 20% off Coupon = 9 by 100 multiplied by 20

                                     (the zero's cut with each other leaving)

                                     = 9 by 10 multiplied by 2

                                     (9 multiplied by 2 = 18)

                                     = 18 by 10

                                     (18 divided by 10 = 1.8)

                                     = the 20% of 9$ is equal to 1.8

                                        when subtracted with the total cost leaves 7.2$

4 0
3 years ago
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