Team 1
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Team 2
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Teams
Name
Score
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monster
Reset all scores!
Oops!
×
seesaw
Swap points!
Okay!
×
fairy
Take points!
5
10
15
20
25
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thief
Give points!
5
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25
10
×
What is the co-ordinate of y-intercept of: y = x^2 + x - 6
( 0, -6)
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20
×
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)
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10
×
When a<0, so the graph of the function will have .... point
maximum
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20
×
What is the minimum point of: y = x^2 - 4x - 21
x = 2 , y =- 25Â (2,-25)
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25
×
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
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20
×
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)
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10
×
When a>0, so the graph of the function will have .... point.
minimum
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×
seesaw
Swap points!
Oops!
×
gift
Win 20 points!
Okay!
×
shark
Other team loses 15 points!
Okay!
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baam
Lose 25 points!
Oops!
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lifesaver
Give 25 points!
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fairy
Take points!
5
10
15
20
25
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gift
Win 20 points!
Okay!
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thief
Give points!
5
10
15
20
25
10
×
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
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15
×
What is the co-ordinate of x-intercept of y = x^2 - 2x - 24
x = -4 or x = 6
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15
×
What is the co-ordinate of x-intercept of y = x^2 + 3x - 18
x = 3 or x = -6
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10
×
What is the co-ordinate of y-intercept of: y = x^2 - 4
( 0, -4 )
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20
×
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)
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20
×
What is the maximum point of: y = -x^2 + 2x + 6
x = 1, y = 7 (1, 7)
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