Select all ratios equivalent to 15:6
10:4
7:2
20:8​

10:4 and 20:8 are equivalent to 15:6.

Step-by-step explanation:

15/6 = 2.5

10/4 = 2.5 yes

7/2 = 3.5 no

20/8 = 2.5 yes

the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0