QUADRATIC FUNCTION | Baamboozle - Baamboozle | The Most Fun Classroom Games!

0%

0 0 0

From the graph below, we know that the quadratic function has .... ( value of a and D)

a < 0 ( because the graph has a maximum point), D = 0 (because there is one co - ordinate of x - intercept)

Andi just throw up a ball and used the function h(t) = 8t - 2t^2 (h = height in m, t = time in s). What is highest point of the ball?

8 m

What is the formula to get a maximum or minimum of some quadratic function?

find the axis of symmetry: x = -b / 2a then do the subtitution into the quadratic equation

What is the minimum point of: y = x^2 - 4x - 21

x = 2 , y =- 25 (2,-25)

What is determinant used for? And what is the formula of D?

To find the x - intercept of quadratic function. D = b^2 - 4ac

What is the co-ordinate of y-intercept of: y = x^2 - 4

( 0, -4 )

From the graph below, we know that the quadratic function has .... ( value of a and D)

a > 0 ( because the graph has a minimum point), D > 0 (because there are two co - ordinate of x - intercept)

What is the co-ordinate of x-intercept of y = x^2 - 2x - 24

x = -4 or x = 6

What is the co-ordinate of x-intercept of y = x^2 + 3x - 18

x = 3 or x = -6

When a>0, so the graph of the function will have .... point.

minimum

When a<0, so the graph of the function will have .... point

maximum

What is the maximum point of: y = -x^2 + 2x + 6

x = 1, y = 7 (1, 7)

From the graph, we know that the quadratic function has ... (value of a and D)

a > 0 (because the graph has a minimum point), D < 0 (because there is no x - intercept)

What is the co-ordinate of y-intercept of: y = x^2 + x - 6

( 0, -6)

What is the value of a, b, and c of : y = -x^2+3x-4

-1, 3, -4