Tolong yaa untuk besokkk, pakai cara yaaa

x + 5y + 7 = 0 => m = -a/b = -1/5 karena tegak lurus (m1.m2 = -1)
maka m = 5 => m = y'

y = 2x^2 + x + 1
y' = 4x + 1
m = 4x + 1 = 5
=> 4x = 4
=> x = 1

y = 2x^2 + x + 1
y = 2(1)^2 + 1 + 1 = 2 + 1 + 1 = 4

Persamaan garis singgung di (1, 4) dan m = 5
y - y1 = m(x - x1)
y - 4 = 5(x - 1)
y - 4 = 5x - 5
y = 5x - 1