F(x)=ax + b, jika f(5)= -5 dan f(-2)=16 maka nai f(10) adalah

itu jawabannya kalau gak salah

eliminasi
f(5)= -5 > 5a+b = -5
f(-2)= 16 > -2a+b= 16
---------------- -
7a = -21
a = -21/7
a = -3
5a + b = -5
5(-3)+b = -5
-15 + b = -5
b = -5 + 15
b = 10

f(10) = 10a + b
f(10) = 10(-3) + 10
f(10) = -30 + 10
f(10) = -20