2(m - 4) + 1 = 2m - 8 + 1 = 2m - 7
Umm not really sure but I'd go with A. You may need another source to double check my answer, I'm probably wrong.
⭐️- Remember that slope formula is y=mx+b
1. Know that the m is (-3)
2. 4=(-3)(9)+b
3. 4=(-27)+b
4. b=31
5. y=(-3x)+31
6. y=3x-31*
*whenever it is finding a perpendicular, you switch the signs; when it is finding a parallel, you leave it alone
Answer:
B. 6x^2+2x-7
Step-by-step explanation:
Ok so
(6x^2-3x) + (5x-7)
Then add the like terms
Theres no like terms for 6x^2
Add -3x + 5x which = 2x
Theres also no like terms for -7
SO
Your final answer is 6x^2 + 2x -7
Hope I helped! Have a good day :)