Which is the best visual aid or multimedia to use with a speech about population growth in your city?

a.
a bar graph showing growth over a 10-year period

b.
a video about the city’s greatest attractions

c.
a song you wrote about the city

d.
a slideshow of people who live in the city

The correct answer is: A) a bar graph showing growth over a 10-year period.

Explanation:

Out of the given options, the best visual aid to use to talk about population growth is a bar graph that conveys the changes in populace in a specific period of time. None of the other choices would show the information that one's trying to communicate.

substitute y = 2x - 4 to x + 2y = 12:

x + 2(2x - 4) = 12     use distributive property

x + (2)(2x) + () = 12

x + 4x - 8 = 12     add 8 to both sides

5x = 20     divide both sides by 5

x = 4

put the value of x to the first equation:

y = 2(4) - 4

y = 8 - 4

y = 4