No the don't add up to one eighty I'm pretty sure if not tell me
Answer:
48x+13.8
Step-by-step explanation:
i think you stack them and cross multiply.
First find the slope, take derivative of both sides with respect to x.
2y dy/dx=3x^2+6x
solve for dy/dx
dy/dx=[3x^2+6x]/2y
plug in given vales of (1,2(
dy/dx=9/4
now you have everything you need to plug into point slope form
y-2=(9/4)(x-1)
answer is y=(9/4)x+(1/4)
I believe it is y= -x + 4