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rumus fungsi h:a → -3a²+7
jwb:
h: -2 → -3(-2²) +7 = -3(4) + 7
= -12 +7
= -5
h: -1 → -3(-1²) +7 = -3(1) +7
= -3+7
= 4
h: 0 → -3(0²) +7 = -3(0) +7
= 0+7
= 7
h: 1→ -3(1²) +7 = -3(1) +7
= -3 +7
= 4
h: 2→ -3(2²) +7 = -3(4) +7
= -12+7
= -5
h: 3→ -3(3²)+7 = -3(9) +7
= -27+7
= -20
h:4 → -3(4²)+7 = -3(16) +7
= -48+7
= -41