Answer:
-6.1 - (-3.13) = -2.97
Step-by-step explanation:
two negative symbols = a positive.
The equation is y=2x+1.
to find b in y=mx+b you simply look for a point where x=0 which was (0,1) making the y-intercept or "b" equal to 1. to find the "m" or slope plug in any point for x and y. (9)=m(4)+1 is 2=m. so y=2x+1 is your answer.
Starting from

take the first derivative using the power and chain rules:


Now take the second derivative:


Optionally, you can condense the second derivative a bit by factoring out
, which gives



Choices A and B are correct. To find the equivalent expressions, you would do the distributive property for the choices to
get rid of the parentheses. You would then see which choices match up with 15 - 5x. Hope this helps!
A.) -5x + 15 (yes)
B.) 15 - 5x (yes)
C.) -15 + 5x (no)
D.) 5 - x (no)
Step-by-step explanat
(g) 3[(3)²-2]+4=3(9-2)=3×7=21+4=25