Diberikan fungsi f(x)=4x-7. Nilai dari f(4)-f(-4) adalah ….

Jawaban:

f(x) = 4x – 7

f(4) = 4(4) – 7

= 16 – 7

= 9

f(-4) = 4(-4) – 7

= -16 – 7

= -23

ditanya: f(4) – f(–4)?

=> f(4) – f(-4)

= 9 – (-23)

= 9 + 23

= 32 (B)

semoga membantu,

met belajar 🙂

Jawab:

f(x) = 4x – 7

f(4) = 4(4) – 7

f(4) = 16 – 7

f(4) = 9

f(-4) = 4(-4) – 7

f(-4) = -16 – 7

f(-4) = -23

f(4) – f(-4) = 9 – (-23) = 9 + 23 = 32

semoga membantu 🙂