Express `Y = -4` graphically in terms of one variable.

Solve 2x + 1 = x - 3 and express it graphically in terms of one variable.

Solve 2x + 1 = x - 3 and express it graphically in terms of two variable.

Solve graphically : |y| ge 3 .

Express one parsec second in terms of light years.

Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer:- y+2/y

Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer:- y^2+sqrt2

Which of the following expressions are polynomial in one variable and which are not? Give reasons your answer y^2+sqrt3