bntuin jawabnya dong teman ...jawab yg betul ya aku kasih point 100

Diketahui y' = 2x - 3

y = ∫y' dx
y = ∫(2x - 3) dx
y = x² - 3x + C

Kurva melalui (2,-1)

-1 = 2² - 3.2 + C
C = 1

Persamaan kurva :
y = x² - 3x + 1

•••
∫y dx [1_-2]
= ∫(x² - 3x + 1) dx
= 1/3 x³ - 3/2 x² + x ... [1_-2]
= 1/3 (1³ - (-2)³) - 3/2 (1² - (-2)²) + (1 - (-2))
= 1/3 . 9 - 3/2 . (-3) + 3
= 3 + 9/2 + 3
= 10,5