What is a rule for the function represented by this graph?

Question

anonymous · Answer

attachment

anonymous · Answer

five times the number

negative five times the number

five less than the number

five more than the number

anonymous · Answer

Convert the sentences into an equation:

5x
-5x
x-5
x+5

anonymous · Answer

y = 
5x
-5x
x-5
x+5

anonymous · Answer

If the equation is y = x+5, the line will move up 5.units
If if is 5x, y will be smaller then say y=2x

anonymous · Answer

Do you have any idea?

anonymous · Answer

kind of

anonymous · Answer

Which one do you think it is, and why?

anonymous · Answer

5x

anonymous · Answer

Lets test it out:

Do you see the x-intercept is 5?

anonymous · Answer

no its passing 5

anonymous · Answer

If it is, then y = 0, at x = 5.

y = x - 5
0 = x - 5
x = 5. 

If the equation was y = 5x, then the x-intercept would be at (0,0)
0 = 5x
x = 0

anonymous · Answer

-5x

anonymous · Answer

Likewise, if the equation was y = -5x, the intercept would be as follows
y = 0 at x

0 = -5x
x still = 0

anonymous · Answer

x-5

anonymous · Answer

the answer is y = 5+x, it moves the line up 5 units, as you can see in the graph, and has an x-intercept of 5.

In y = x+5, the x-intercept would be -5

y = x + 5
0 = x + 5
x = -5

anonymous · Answer

*the answer is x-5, sorry

anonymous · Answer

its okay thank you for explaing to me