Question

Suatu fungsi h:x ⇒ 5x - 7
tent:
a). rumus fungsi
b). h (-2)
c). nilai fungsi untuk x = 0
d). bayangan dari 3
e). bayangan dari 5a
f). nilai a jika g (a) = -22
g). daerah asal jika bayangan 13

pliiss jawab dengan benar!!!

Answer 1

Verified answer

A) h(x)= 5x-7
b)h(-2)= 5 × -2 -7 = -17
c)h(0)= 5×0-7= -7
d)h(3)= 5× 3-7 =8
e)h(5a) = 5×5a-7 =18a
f)g(a)= 5×a-7
-22= 5a-7
5a= -7+22
5a= 15
a= 3
g)h(13) = 5×13-7 = 58

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#maaf kalo kurang tepat

Answer 2

A) h (x) = 5x - 7
b ) h (-2) = 5.-2 - 7 = -10 - 7 = -17
c) h (0) = 5.0 - 7 = -7
d) h (3) = 5.3 - 7 = 15- 7 = 8
e) h (5a) = 5.5a - 7 = 25a - 7
f) h (a) = -22. ==» 5.a - 7 = -22 ==» 5a - 7 = -22
5a = -15. maka a = -3
g) h (x) = 13
5x - 7 = 13
5x = 20
x = 4, jadi daerah asal 4