Propaganda is incorrect information that is spread to convince others that it is true
not sure if this is what you're asking
i hope this helps !!
A function is an equation or graph where each x value only has one y value. In the first image you can use the vertical line test. Take your pencil and lay it on the paper vertically. Move it across the graph. Basically if an x value has multiple y value it is not a function. The first image is not a function because all x values past zero have multiple y values for each x value. In the second image it is not A because in A the x value of 2 has a y value of 1 and 8. It is not B because the 5 has a y value of 3 and 7. It’s is not D because of the 5 again. It is C because all x values are unique.
Hope that helps
DONT PRESS THE LINK ABOVE ! ITS A SCAM
We want to find one-half of the reciprocal of 7/sqrt(98). Let's write down an expression for this:
We can rewrite 98 into 
The square root of 49 is 7
This should be your answer. Let me know if you need any clarifications, thanks!
