Use the formula:
an = a1 + (n-1)d
a7 = a1 + (7-1)d
-45 = a1 + 6d
a15 = a1 + (15-1)d
-77 = a1 + 14d
So you have this system of equations:
-45 = a1 + 6d
-77 = a1 + 14d
a1 = -21, d = -4
HOPE I HELPED!! :) lmk how it goes
A. this would be -1 because that is the y intercept as in where it meets the y axis.
b. the slope or rate of change would be 3 or 3 over 1. just follow the y=mx+b form. m=slope and b=yintercept or where the line meets the y axis. hope I helped
Approaches y=0
increases without bound
Answer:
the equation for the stated problem would be:
3x ≥ -6
Step-by-step explanation:
I think it is 20 because you have to multiply and then divide them add 11 then subtract 9 idk what I am saying