Answer:

Step-by-step explanation:
Given

--- (not clear but that is what I'm able to read)

Required
Find x
From the attachment, the corresponding angles of both triangles are equal:
This implies that:



Apply angle sums property

This becomes

Collect like terms



Using the midpoint formula, you'd get B: -1,1
: D
(f-g)(x) is x² - 3x - 7
Step-by-step explanation:
- Step 1: Given details are f(x) = 3x + 1, g(x) = x² - 6
- Step 2: Calculate (f-g)(x) by using the formula (f-g)(x) = f(x) - g(x)
⇒ (f-g)(x) = (3x + 1) - (x² - 6)
⇒ (f-g)(x) = -x² + 3x + 1 + 6
⇒ (f-g)(x) = x² - 3x - 7