How do you do this question?

-3/16

Step-by-step explanation:

x = 6 + t²

y = t² + t³

dx/dt = 2t

dy/dt = 2t + 3t²

dy/dx = (2t + 3t²) / 2t

dy/dx = 1 + 1.5t

d²y/dx² = d(dy/dx)/dt / (dx/dt)

d²y/dx² = (1.5) / (2t)

d²y/dx² = 3 / (4t)

At t = -4:

d²y/dx² = 3 / (4 × -4)

d²y/dx² = -3/16

answer: 457.14

step-by-step explanation:

205 - 45 = 160

160 / .35 = 457.142857

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