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cupoosta [38]
2 years ago
10

Write an equation of the line that passes through the points (1, 2) and (4, 8)

Mathematics
2 answers:
cestrela7 [59]2 years ago
8 0

Answer:

y = 2x

Step-by-step explanation:

The equation of a line in slope- intercept form is

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

Calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (1, 2) and (x₂, y₂ ) = (4, 8)

m = \frac{8-2}{4-1} = \frac{6}{3} = 2 , then

y = 2x + c ← is the partial equation

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

Using (1, 2 )

2 = 2 + c ⇒ c = 2 - 2 = 0

y = 2x ← equation of line

faust18 [17]2 years ago
6 0

Answer:

2x-y=0 / y=2x

Step-by-step explanation:

6x-3y=0, 2x-y=0

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Which equation has a maximum at y = 5 for 0 < x < 27?
Vinvika [58]

Answer:

To determine which equation has a maximum at y =5, you will need to compare their graphs looking only at the x-values between 0 and 27.

Step-by-step explanation:

6 0
2 years ago
Help!
alex41 [277]
A) 5/2x^3-9/4x^2+7/2x-3/2
b) the ans. are not the same.

8 0
3 years ago
Find an equation of the line containing the point (3,3) and parallel to y = 2 x − 1 y=2x-1.
pickupchik [31]
Y=mx+b
y=2x+b
then substitute x and y
3=2(3) + b
3= 6 + b
b=-3
y=2x-3
7 0
3 years ago
Please help I will mark Brainly
valina [46]

I believe the answer is A. X-Coordinate


7 0
3 years ago
Read 2 more answers
NEED HELP ASAP!! WILL MARK BRAINLIEST IF ITS RIGHT!!
Karo-lina-s [1.5K]

Answer:

First one: yes

Second one: yes

Third one: no

Step-by-step explanation:

To find the midpoint of a line segment, you take the x and y coordinates of the 2 points, add each of them up, and divide each of them by 2.

First one: x = (1+3)/2 = 2, y = (2+4)/2 = 3, so it's correct.

Second one: x = (-1+3)/2 = 1, y = (1+-1)/2 = 0, so it's correct.

Third one: x = (-3+-1)/2 = -2, y = (0+5)/2 ≠ 2, so it's not correct.

I really hope this helped.

3 0
3 years ago
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