help ASAP is 2 a solution of 4x+12=4? Complete the statement The equation is
True or false

When x =2, so 2 a solution
Is not
Is

2x minus y equals 6, x plus y equals negative 3

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

Which is the focus of a parabola with equation y2=4x