Question

Match the inequality to the graph of its solution.

a. n over 4≤ –1

b. –10x ≥ –100

c. 5x ≥ 20
A number line is labeled from negative 10 to 10. There is a closed circle on 10 and the line is shaded to the left.

Answer 1

Shaded to the left means less than
The closed circle means equal, so
n ≤ 10

That is (b) above because
-10x ≥ -100
add 10x to both sides to get
0 ≥ -100 + 10x
now subtract 100 to get
100 ≥ 10x
divide by 10 to get
10 ≥ x
which is the same as x ≤ 10

Answer 2

oObLeCk

Answer 3

is it true

Answer 4

almost a year later

Answer 5

4.b
5.a
6.c