4. a) = 6x 4 y b) 5. a) slope: 8; 4 y-intercept: b) slope: ; 4 y-intercept: 6. a) 2; 4 x-intercept: y-intercept: b) 6; 2 x-intercept: y-intercept: c) 2; 4 x-intercept: y-intercept: d) 3; 5 x-intercept: y-intercept: 7. 2x 3y + 12 = 0 and 3y = 2x + 6 2x 3y + 12 = 0 and 3x + 2y = 4; 3y = 2x + 6 and 3x 8. + 2y = 4 9. 4 10. = 3x + 1 y 11. 12. = 9x + 23 y 13. a) 1.1 b) = 1.1t + 5 d About 4.5 s c) 14. (1, 1) 15. (2, 4)
4. a) y = 6x 4 b) 5. a) slope: 8; y-intercept: 4 b) slope: ; y-intercept: 4 6. a) x-intercept: 2; y-intercept: 4 b) x-intercept: 6; y-intercept: 2 c) x-intercept: 2; y-intercept: 4 d) x-intercept: 3; y-intercept: 5 7. 2x 3y + 12 = 0 and 3y = 2x + 6 8. 2x 3y + 12 = 0 and 3x + 2y = 4; 3y = 2x + 6 and 3x + 2y = 4 9. 4 10. y = 3x + 1 11. 12. y = 9x + 23 13. a) 1.1 b) d = 1.1t + 5 c) About 4.5 s 14. (1, 1) 15. (2, 4)