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6 (APEX)
2
What is the question? Y changes as x changes. For example if y=4 x=43 3(4squared)-5 This is the equation for a straight line whicjhis found by making up different variables for y and finding x then graphing those coordinates
Technically there are no variables in this equation, as 47 minus 25 is equal to x (22)
y=-3x+6there are 2 variables.
You need another equation to make this a linear equation so you can solve for both variables. One equation with two variables is not enough to determine the correct answer.
It is a linear equation in the variables x and y.
One linear equation in two variables cannot be solved. You can only express one of the variables in terms of the other.
It is one linear equation in two unknown variables.
a+b=16 is a linear equation in two variables. The variables are a and b. To solve a linear equation in 2 variables we need more information. We need either another equation, or a value to put in for a or b.Since we have neither, there is no more we can do.
It is an equation in three unknown variables.
The equation contains variables which are only raised to the first power.