1. 4y + 3x = 25
2. 3y + 5x = 0
3. y + x = 2√2 − 4
4. y = √3x − 5 − 4√3
5. 4y + x = 10
6. 3y − 2x = 12√ 2
7. 2y = √2x − 4
8. 4y + 3√2 x = -52
9. a. gradient of tangent is -3cosθ / 5sinθ
b. Proof
10. a. dy/dx = -3t / 2
b. y − 2 = 1.5(x + 1)
c. The coordinates of B are (-0.25, 3.125)
