700+20+1 i'm not too sure but i hope this helps
The parent function, here is
f(x) = x² which is upward opening parabola.
In order to get a graph of f(x) = x²-1, shift the parent function, f(x) = x² by +1 unit downward. This is the transformation.
Answer:

Step-by-step explanation:
The line passes the origin(0,0) and point (4,3). Using rise/run we can tell that the slope is 4/3
and using y=mx+b where m represents the slope we can tell that the final equations is 
Answer:
5
Step-by-step explanation:
First, let us simplify the expression on the left
8(4+3) - 21 = 8(7) - 21 = 8(7) - 3(7) = 7(8-3)
Divide this by 7 and you'll get 8-3 = 5