Question

check graphically whether the pair of equation 3x + 5y = 15 and x-y= 5 is consistence .also find the coordinates of the points where the graphs of equations meet the y axis

Answer 1

3/1 ≠ -5/1
Equations have unique solutions. Hence they are consistent.

X = 5+y

Put in equation (i)

3(5+y) + 5y = 15.

15 + 3y + 5y = 15
8y = 0

Y = 0

X = 5

Answer 2

Answer:

Step-by-step explanation:

3/1 ≠ -5/1

Equations have unique solutions. Hence they are consistent.

X = 5+y

Put in equation (i)

3(5+y) + 5y = 15.

15 + 3y + 5y = 15

8y = 0

Y = 0

X = 5