Question

Tolong di jawabbb ya ka secepatnya

Answer 1

A.
f(x) = ax + b
f(0) = a(0) + b = -4
f(0) = 0 + b = -4
b = -4

f(2) = a(2) + b = 0 (substitusi nilai b = -4)

2a + (-4) = 0
2a = 4
a = 2

sehingga f(x) = 2x -4 (rumus fungsi nya)

b.
f(m) = 2m - 4 = 8
2m = 8 + 4
2m = 12
m = 6

7. gradien garis melalui dua titik yaitu titik (0,6) dan (3,0) maka

m = (y2 - y1) / (x2 - x1)
m = (0 - 6) / (3 - 0)
m = -6 / 3
m = -2