Tyree Murray 16 Use your notes for this CUMMULATIVE ASSESSMENT on QUADRATIC Functions & Equations. Please use a separate sheet of paper to Show your work (5-pts @ 105 pts) Use your notes and knowledge and show your work to find the y-intercept of the following linear equation y- int 1 . - 3y +15 = -72 4-7 +5 ( U= 5) - int Show your work to find the axis of symmetry of the following quadratic equation 2. -3.22 +7 = -21.x Show your work to find the vertex of the following quadratic equation 3. -212 = 8x +7 Use the given and show your work to write this in vertex form 4. vertex ( 4, -3) and y-intercept is -12 Show your work, use your notes to convert this vertex form the following quadratic functions into standard form then Show your work also find the y-intercept 5. y=-2(x-6)2-79 6. y= 3(x +4)2-7 Show your work, use your notes to factor the following quadratic equations 7. Aya-1ly -3 8. 273+ 7r+8 9 . 5a2 -3a -2 Show your work, use your notes to find the roots of the following quadratic functions 10. 3.272 + 7.2: + 2 11. 3.2+ 8x + 5 Show your work, use your notes to find the zeros of the following quadratic functions 12 . (a -6)(a+8) 13. (3x+ 4) ( 3x -4) 14. (4x + 2)( 5x -3) Show your work, use your notes and the quadratic formula to find the x-intercepts of the quadratic functions 15 .fa.) = -52 2+ 72 -3 16. Ax) =4x2-5x -6 Show your work, state the value to determine the number of solutions of the following quadratic functions 17.322 -327 + 3 18. 37"-10x +9 19. -2 2+ 72 - 43 Show your work & Solve the following 20. 522 +2x - 3 = 0 21. 212 -92 -5 =0 5x2 - 3x+ 5x 2 - 3= 0 dx- 10* * *- 5=0 X - 5 (5x - 3) + ( 5x - 3 2x ( x- 5 ) + ( x - 5 ) = 0