Question

show the points A(1,2) B(-1 ,-16) C(0,-7) lie on the graph of the linear equation y= 9x - 7​

Answer 1

Answer:

Step-by-step explanation:

To show that the points lie on the graph of linear equation y=9x-7

We have to check for the given values

For 1st value/ordered pair ,

A(1,2) x = 1, y = 2

Substituting in the given eqn,

2=9(1)-7

=> 2=2

This ordered pair is satisfied

Second pair , B(-1,-16) x = -1,y=-16

=> -16 = 9(-1)-7

=> -16= -16

This pair also satisfies the eqn

Third pair , C(0,-7) x=0,y=-7

=> -7= 9(0)-7

=> -7 = -7

This one also satisfies the equation

So , all of the Values/pairs satisfies and are solutions of y=9x-7.

Hence they lie on the graph of linear equation y=9x-7

Answer 2

The given linear equation is

y=9x-7

For, A(1,2)

Put x=1 and y=2 in above eqn

2=9(1)-7

2=9-7

2=2

LHS=RHS

For, B(-1,-16)

Put x=-1 and y=-16

-16=9(-1)-7

-16=-9-7

-16=-16

LHS=RHS

For C(0, 7)

Put x=0 and y=-7

-7=9(0) -7

-7=-7

LHS=RHS

As, A(1,2) , B(-1,-16) , C(0, 7) satisfies the above eqn

therefore, these points lie on the graph of linear equation y=9x-7.