Question

What is the value of the coefficient of "a" when the quadratic equation y = (2x - 1)(4x - 3) is written in standard form?
Answer
6
8
-10
-6

Answer 1

FOIL out the right side, what do you get?

Answer 2

6?

Answer 3

What do you get when you expand out (2x - 1)(4x - 3)

Answer 4

8x^2 - 10x + 3

Answer 5

is it right?

Answer 6

you got it

Answer 7

now what is the leading coefficient?

Answer 8

-10?

Answer 9

Remember, the general form of any quadratic is ax^2+bx+c

Answer 10

That value of 'a' is the leading coefficient

Answer 11

oohhhh... 8

Answer 12

yes you got it