Answer:
Step-by-step explanation:
1 . (4x² - 9x + 16) + (7 + 9x² - 10x)
4x² - 9x + 16 + 7 + 9x² - 10x
13x² - 19x + 23
2 . (-2x + 6) - (14x - 11)
-2x + 6 - 14x + 11
-16x +17
5/7
You find a slope by using the equation y2-y1/x2-x1.
In this case: 15-5/21-7
10/14
Solutions: x=1.
Hope this helps!
