Question 1170593
number 1 is correct.


number 2 is  not.


two or more equations that have one common solution are called independent equations.


number 3 is correct.


i got this from the following reference.


<a href = "https://courses.lumenlearning.com/boundless-algebra/chapter/systems-of-equations-in-two-variables/" target = "_blank">https://courses.lumenlearning.com/boundless-algebra/chapter/systems-of-equations-in-two-variables/</a>


the above applies to straight line equations.


those are equations where the highest exponent of the independent variable is 1.


such an equations will have the standard form of ax + by = c
a is the coefficient of the x term.
b is the coefficient of the y term.
c is the constant term.


if the value of x is 0, then this becomes by = c
if the value of y is 0, then this becomes ax = c


if the exponent of x is 0, then this becomes a + by = c
if the exponent of y is 0, then this becomes ax + b = c


the value of both x and y can't be equal to 0 because then you have 0 = c which is not a line.


the exponent of both x and y can't be equal to 0 because then you have a + b = c which is not a line.