(2x2 + 5x - 7) + (3x2 -8x -12)
5x2 - 3x - 19
Find slope: (0, 2) ; (5, 8)
6/5
Find f(2): f(x) = 2x + 2
6
x2 +13x + 12
(x+12)(x+1)
2x + 6 = x + 8
x=2
(x2 + 7x +10) - (-3x2 +2x + 8)
4x2 + 5x + 2
(-1, -7) ; (4, 10)
17 / 5
find f(3): f(x) = x2 -2x + 6
9
x2 - x - 42
(x+6)(x-7)
-3x - 10 = -5x - 22
x = -6
(3x - 5)(2x - 7)
6x2 - 31x + 35
(-2, 5) : (-5, -8)
13 / 3
find f(-3): f(x) = -x2 +3x + 1
-17
2x2 + 9x + 4
(2x + 1)(x + 4)
x= -1
(2x2 - 3)(x2 - 2x - 5)
2x4 - 4x3 -13x2 + 6x + 15
Find the Slope between two Points
-1/2
Find Range when Domain is {-2, -1, 5}
y = 2x - 5
{-9, -7, 5}
3x2 + 4x - 15
(3x - 5)(x + 3)
-2(-2x - 8) = 3(2x - 7)
x= 37/2 = 18.5
(7y2 - 5y - 6) - (11 + 7y2 - y)
-4y - 17
Pull Picture up:
Find slope between D and C
3/5
f(x) = 3x - 12
6x2 - 9x - 15
(6x - 15)(x + 1)
5-2.5(3x - 7) = .5 + .25(-2x + 10)
x=19.5/7 = 2.7857 = 39/14