solving quadratic by graphing

There are four methods of solving quadratic equations. i) By factorization ii) By completing the squares iii) By using the formula iv) By graphing..

Which of the following can be the discriminant of the graph of the quadratic equation? => b 2 - 4 ac = - 3 or b 2 - 4 ac = 0 or b 2 - 4 ac = 5 or b 2 - 4 ac = 16..

Which of the following can be the discriminant of the graph of the quadratic equation? => b 2 - 4 ac = 4 or b 2 - 4 ac = 0 or b 2 - 4 ac = 2 or b 2 - 4 ac = 8..

Which quadratic function best represents the graph? => y = - x 2 - 2 x + 1 or y = x 2 - 2 x + 1 or y = x 2 + 2 x + 1 or y = - x 2 + 2 x + 1..

Solve the quadratic equation - 4 x 2 - 4 x + 8 = 0 using the graph. => - 4 and 1 or - 2 and 1 or - 3 and 1 or None of the above..

Determine which of the graphs shown represent a quadratic function. => Graph 2 and Graph 3 or Graph 2 and Graph 1 or Graph 2 only or Graph 3 only..

Recall, a quadratic equation is of the form . An equation is said to be reducible to quadratic (or of quadratic form) if the variable factor of the leading term is the square of the variable factor in the second variable term. We can solve these types o..

Identify the function the graph represents. => Quadratic function or Non-linear function or Linear function or None of the above..

Question 21 - Question: Solve graphically 2y-x=9; 6y-3x=21 Answer: Plotting through points (1,5) (3,6) (5,7) and joining them by a ruler we get through line l. Plotting through points (-3,2) (-1,3) and (3,5) and joining them, we get line m. We shows that line 'l' and 'm' are parallel. The..

Function Solved Examples - The arrow diagram represents a relation from set A to set B. (i) Represent the relation in roster form. (ii) Is this relation a function? Give reason for your answer. (i) {(1, 2), (2, 4), (5, 2), (3, 10), (4, 10)} (ii) Yes it is a function. Every first element i..