Question

At what point do the lines y = 8x + 1 and 4x + 6y = 6 intersect?

Answer 1

y = 8x + 1 and 4x + 6y = 6
First, change the equations to:
a) 8x -y = -1
b) 4x +6y = 6

Answer 2

Then multiply equation "a" by 6
a) 48x -6y = -6

Answer 3

Now add the 2 equations together
a) 48x -6y = -6
b) 4x +6y = 6

Answer 4

What do you get?

Answer 5

Thank you :) can you help me with another question? I have to hurry

Answer 6

What is the product of the polynomials -x2y + 3xy – 8y and 4xy – 3y?

Answer 7

Okay go ahead

Answer 8

^^ the polynomials question

Answer 9

I'd do the multiplications one by one - (6 in all)

Answer 10

(-x2y + 3xy – 8y) * (4xy – 3y) =
-x2y*4xy + (3xy*4xy) -(8y*4xy) + x^2*3y -3xy*-3y +8y*3y

Answer 11

Can you complete those?