Find the coodinates of the y-intercept for the given equation. y = 4x + 4

Solve the system by elimination.  x + 5y = 18-6x + 4y = 28

Find the coodinates of the y-intercept for the given equation. y = 3x – 4

Factor the polynomial completely.x2 + 2xy – 48y2

Factor completely.15×2 – 29xy + 12y2

Factor the trinomial completely. If the polynomial cannot be factored, write “prime.”4×3 + 4x2y – 80xy2

Solve the equation.9x 2 – 2x = 0

Use the method of your choice to factor the trinomial, or state that the trinomial is prime.7×2 – 27x – 4

Use the method of your choice to factor the trinomial, or state that the trinomial is prime.15×2 + 14x – 8

Factor completely.20×2 – 27xy + 9y2