There is no = sign in this. It is not an equation it is an expression. It cannot be graphed.
If so, this is almost standard format. For it to be standard format, the coefficient of x would be greater than zero. This is -5.
Slope-intercept format is...
m is the slope.
b is the y-intercept, the value of y when x=0.
The slope is -5/2.
The y-intercept is -5
Does this help?