Answer:
-2 is slope of line parallel to f(x) = -2x+3.
Explanation:
We have given a function.
f(x) = -2x+3
f(x) = mx+c is equation of line where m is slope and c is y-intercept.
Comparing both of above equation, we have
m = -2 and c = 3
Hence, line have slope equal to -2.
Parallel lines have equal slopes.
hence, the line parallel to f(x) = -2x+3 have slope equal to -2.