Answer:
Step-by-step explanation:
3x + 7 is both a variable expression and an algebraic expression. Since it is not an equation, we can't "solve for x."
Answer:
The slope is -3/4 because it rises goes down 3 and runs 4. the Y-intercept or where the line meets the y line is 3.
Solution:
Given:

Lets First Differentiate the given equation with respect to x



-----------------------(1)
this can be rewritten as

Now differentiating again with respect to x

Now substituting (1) we get



At(1,2) 



Just multiply the different sets of numbers