Answer:
x = -2 y = -2(-2) + 5 f(x) = 9
x = -1 y = -1(-2) + 5 f(x) = 7
x = 1 y = 1(-2) + 5 f(x) = 3
a) (x + 3)( X + 5 )
x( x + 3 )+ 5 (x + 3 )
x square + 3 X + 5 x + 15
X square + 8 x + 15
b)( 3 x minus 2)( X + 4)
x (3 x - 2 )+ 4(3 X - 2 )
3 x square - 2 X + 12 x -8
3 X square + 10 x - 8
c)x(x - 7)
x square - 7 x
C) I think you know the increasing line is the one with 3*x and the other one is -2*x, then the dotted line requires <, instead of <=, the rest I'm sure you can figure out.
Let me know if you need more explanation, but it's to make sure next time you answer someone, instead of asking! :)
<span>The slope of the line passing through the points (0, 4) and (–8, –1) is (-1 - 4)/(-8 - 0) = -5/-8 = 5/8</span>
