Answer:
k ≥ -18
Step-by-step explanation:
-8 ≥ 2/5(k-2)
-8 ≥ 2/5k - 4/5
(-8 ≥ 2/5k - 4/5) 5
-40 ≥ 2k - 4
+4 +4
-36 ≥ 2k
-36 divided by 2
2 divided by 2
-18 ≥ k
flip the greater than or equal to sign to the k.
NO.4:X=38
NO.5:X=41
NO.6:X=24
5a^2 +2a
Like terms are ones with the same exponent of x. They can be combined.
3a^2 +2a +2a^2
= (3a^2 +2a^2) +2a
= (3+2)a^2 +2a
= 5a^2 +2a
-5
-5 is the slope because it is the multiplier of x