May i have help plz this is my weak point

f(v) = -1/4u + 9/4

Step-by-step explanation:

Rewrite

u - 5 = -4(v - 1)

Distribute the -4

u - 5 = -4v + 4

Get v alone

        u - 5 = -4v + 4

           - 4           - 4

        u - 9 = -4v

u/-4 - 9/-4 = -4v/-4 <- Divide both sides by 4

-1/4u + 9/4 = v

Convert to f(x) equation:

f(v) = -1/4u + 9/4