Can someone help me please

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

∆red ≅ ∆ by rule will give brainiest if possible

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.