Question

Show graphically that the system of equations
x - 4y + 14 =0
3x + 2y - 14-0
is consistent with unique solution.​

Answer 1

Answer:

Comparing the ratios of eq. 1&2

a1/a2=b1/b2=c1/c2

1/3=4/2=(+14)/(-14)

a1/a2 not equal to b1 /b2

• now make two boxes

we let the value of x and y from both the eq.

(see image)

now plot these values of x and y on the graph.

value of x on x-axis and value of y on y-axis.