Hello Friend!
In the slope intercept form, b represents the y intercept.
[tex]y = mx +- b[/tex]
Therefore, if the y intercept is at 6, the formula of the line will look like
[tex]y=mx + 6[/tex]
This eliminates The 1st Two options,
[tex]
y=6x + \frac{3}{4}
[/tex]
And
[tex]y=6x + \frac{3}{4} [/tex]
And leaves behind
[tex]y= - \frac{3}{4} +6[/tex]
And
[tex]y= \frac{3}{4} x+6[/tex]
Since the line you indicated is sloping downwards towards the lower right hand corner. It must have a negative slope.
Therefore, The Answer will be 100%:
[tex]y= - \frac{3}{4} +6
[/tex]
I Hope my answer has come to your Help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead! :)
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-TheOneAboveAll :D