Answer:

Step-by-step explanation:
The given data table is
x : 4 7 10 12 13
y : 5 7 12 14 18
We need to find the equation of the best fit line.
The general form of a best fit line is
.... (1)
where, m is slope and b is y-intercept.


Using the graphing calculator we get


Substitute m=1.383 and b=-1.526 in equation (1).

Therefore, the equation of best fit line is
.
Answer:
70
Step-by-step explanation:
If g(x) =x^2 -1, then
f[g(5)] = 3*(5^2-1) -2 =72-2= 70
Is the exponent 2d? or is it (c^2)d?
if 2d, 7-16
Answer:
it is c and you also use something called desmos to help you with graphing questions
First expand...
(3x+7)^2 = 9x^2+42x+49
Bring down -84x...
9x^2+42x+49-84x
Solve...
9x^2-42x+49
Factor...
(3x-7) (3x-7) = (3x-7)^2