The number 0.3333... repeats forever, therefore, it is irrational

Can someone me with my hwplz(only the circled ones)

Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

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?