Question

solve this equation graphically
y=2x+2 and y=x-1


no unnecessary answer​

Answer 1

Answer:

x = -3 and y = -4.

Step-by-step explanation:

Graphical solution is attached:

We basically see the point of intersection of lines and find their co-ordinates.

Normal Solution:

Given,

y = 2x + 2 ...(i)

y = x - 1 ...(ii)

Since, both are values of variαble ' y' so they are equal.

i.e 2x + 2 = x - 1

or, 2x - x = - 1 - 2

or, x = -3

Substitute value of x in (ii):

y = x - 1

or, y = - 3 - 1

or, y = - 4

Hence, x = -3 and y = -4.