help me...

Question

Determine whether the ordered pairs are solutions of the equation:
x-3y=4
a) (1,-1)
b) (0,0)
c) (2,1)
d) (5,-2)

Answer 1

Given line x - 3y  = 4

Substitute the ordered pairs in x  and y  places.

Let 's check  each of possible solution.

a ) ( 1 , -1 )

x  = 1 , y  = -1

4 = 4

Above statement is true.

b ) ( 0 , 0 )

x  = 0 , y  = 0

0 = 4

Above statement is false.

c ) ( 2 , 1 )

x  = 2 , y  = 1

-1 = 4

Above statement is false.

d ) ( 5 , -2 )

x = 5 , y = -2

10 = 4

Above statement is false.

( 1 , -1 ) is solution of x - 3y  = 4.