answersLogoWhite

0


Best Answer

You can work this out by solving one of the equations for either of the variables, and substituting that solution for that variable in the other equation. That will give you one either the X or Y co-ordinate for the point of intersection, and you can calculate the other one with one by plugging that back into one of the original equations:

y = x + 4

y = 3x

∴ 3x = x + 4

∴ 2x = 4

∴ x = 2

y = 3x

∴ y = 6

So the point of intersection between the lines y = 3x and y = x + 4 is (2, 6).

User Avatar

Wiki User

12y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the point of intersection of the line y equals 3x and the line y equals x plus 4?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What is the intersection point of the lines 2x plus y equals 2 and -3x-2y equals -6?

The intersection is (-2, 6)


What is the point of intersection of the lines 6y equals -x -25 and 6x plus 20.5 -y equals 0?

It works out that the point of intersection is at (-4, -3.5) on the Cartesian plane.


What is the point of intersection if y equals x plus 1 and x equals -x plus 1x?

2


What kind of line is this equation 2y plus 4 equals 10 y equals -2x plus 5?

There are two equations in the question, not one. They are the equations of intersected lines, and their point of intersection is their common solution.


What is the coordinates for y equals x y equals -x plus 2?

The coordinates of the point of intersection is (1,1).


What is the common point of these equations x plus 2y equals 6 x plus y equals 2?

When x = -2 then y = 4 which is the common point of intersection of the two equations.


What is the point of intersection of the lines 5x plus 7y plus 29 equals 0 and 11x minus 3y minus 65 equals 0?

(4, -7)


What is the point of intersection of the lines 5x plus 7y plus 29 equals 0 and 11x -3y -65 equals 0?

It works out that they intersect at: (4, -7)


What is the point of intersection of the parabolas of y equals 3x squared plus 10x plus 11 and y equals 2 -2x -x squared?

They intersect at the point of: (-3/2, 11/4)


What is the point of intersection between the lines y equals 4x -1 and 3y -8x plus 2 equals 0?

The point of intersection of the given simultaneous equations of y = 4x-1 and 3y-8x+2 = 0 is at (0.25, 0) solved by means of elimination and substitution.


Equation of a line and a point using substitution to determine whether the point is on the line y equals 5x plus 3 A18?

Yes its on the line.


What is the point of intersection of the lines 5x plus 7y plus 29 equals 0 and 11x -3y -65 equals 0 on the coordinate plane?

By a process of elimination and substitution the lines intersect at: (4, -7)