9. Determine the slope of the line 7x-4y = 12 A. 7 B. 47 C3 D. 7/4 10. Find the slope intercept form of a line passing through the points (-4, 1) and (5. 2). Ay= --r+ - B. y= ]r-13 D. yz-r+- 11. Write the slope intercept form of the equation of a line passing through the point (2, 1) and perpendicular to the lime 4x -2y =3. A. y= 2x-3 Cy=--r+2 B. y = =I D. y = 2r+5 12. In the figure below, the perimeter is 4r + He - 2y units and the length is 2' + x + y. What is the width? W 2r +xty A. w = 2r' - 7x-ly C w= 23 +8r-2 B. w = 6x -4y D. w= Jr-2y 13. Simplify: (5x - 3)(x] - Sr +2) A. 5x* - Irl+ 25x3-5x -6 C. Sr* - 28r+ 25r-6 B. 5x* - 3x-25x3+ 25x-6 D. Sx + 221 - 5x-6