TOPIC # 6–3: Solving Quadratic Equations on the Calculator1. Solve by factoring: x2+ 5x –6 = 0Solutions_______2.Find the x-interceptsof the graph using your calculator.A) Find the button clear out anything there.B) Into y1=________________Into y2= 0 (equation of the x-axis)C) D) (above )E) Choose intersectF) Move the cursor to an x-interceptG) H) Repeat steps D–G to find the other x-intercept.x-intercepts:_______________ Compare the x-intercepts to the solutions. What can you conclude?Y =TRACE2ndCALCENTERENTERGRAPHENTER
Graph the quadratic equation and find the x-intercepts, solutions, factors, vertex, and the y-values for the given x-values. Then sketch the graph and find the axis of symmetry.3. y = x2–8x + 15x-intercepts:______________solutions:________________factors:__________________vertex:_________axis of symmetry:______Solveeach quadratic equation on the calculator. 4. 9x² + 12x –1 = 0 5. 7x² + 2x = 26. 6x² + 7 = -9x 7. 4x² = 10x -58. Find the vertex of y = -2x² -4x –7 ALGEBRAICALLY!What is the axis of symmetry? (YOU MUST SHOW WORK)xy18