Answer:
The slope is 2
Step-by-step explanation:
Using slope formula (y2-y1)/(x2-x1):
(8-2)/(9-6)
(6)/3
2
X + 7 + 2x + 19 = 35
Add like terms
3x + 26 = 35
-26 -26
3x = 9
/3 /3
X = 3
2x² +21x-61 = (x+7)²
expand
2x² + 21x - 61 = x² + 14x +49
move everything to one side
x² + 7x - 12 = 0
use quadratic formula
plug in the values
solve
13.708
The second one