The question leaves you with the partially factored equation:
8x(7x-1) - 1(7x-1)
Now if you look at the partially factored equation, you'll see that both terms have (7x-1) as one of their factors. So let's take that (7x-1) as a factor and divide both terms by (7x-1), giving us
(8x(7x-1) - 1(7x-1)) / (7x-1)
The (7x-1) factors cancel out, leaving us with
(8x - 1)
So our 2 factors are (7x-1) and (8x-1).
Looking at the available options, the only correct one is
0, 3, 8, 15, 24, . . .
it is arithmetic
Odd ? i believe , if thats what your asking
Recall the forms of vertical and horizontal lines
Horizontal lines come in the form of , so the slope of the equation is zero. The value of b will be the y-value of the point that you're given.
This means that the equation for a would be y=1
Vertical lines come in the form of . For this line, the value of a would be equivalent to the x-value of the given point. Therefore, b. would be