Help me answer these pls!!

Use the quadratic formula to solve 5x=6x^2-3,what are the values of x?

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

Which of the following is true for the relation f(x)=2x^2+1