Line l contains the points (3,1) and (4,4). If line m is a different line, parallel to line l in the same coordinate plane, which of the following could be the equation of line m?

Ay = 3x - 8
By = 1/3x - 3
Cy = -3x - 8
Dy = 3x + 1
Ey = -8x + 3

Question

Answered

Verified Answer :

elkinjan elkinjan · Answer 1 · 2015-06-04T11:13:19-04:00

First you need to fine the slope
3,1
4,4
The slope with be m= 3
then put it in point slope from
y-1=3(x-3)
y-1=3x-9
y=3x-8

so the answer with be "A"

Answer Link

agaue agaue · Answer 2 · 2019-10-05T00:59:21-04:00

Answer:

Option D is the correct answer.

Step-by-step explanation:

Slopes of parallel lines are same. Here l and m are parallel, so their slopes must be equal.

Given two points of line l, so we can calculate slope of l.

Points are (3,1) and (4,4),

\(m_l=\frac{y_2-y_1}{x_2-x_1}=\frac{4-1}{4-3}=3\)

Equation of line l,

y - y₁ = m(x-x₁)

y - 1 = 3( x -3)

y = 3x - 8

Slope of line line l = Slope of line line m = 3

The options are given in the form, y = mx + c

Slope of option A = 3 ( But it is the equation of line l)

Slope of option B = 1/3

Slope of option C = -3

Slope of option D = 3 ( slope is same)

Slope of option E = -8

So we can see option D is the correct answer.