Exploring Quadratics and Heron's Formula
Authored by Erin Yue
Mathematics
8th Grade
CCSS covered
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22 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Solve x2 + 4x + 3 = 0 :
解 x2 + 4x + 3 = 0 :
x = 1 and x = 3
x = 1 及 x = 3
x = 6 and x = -2
x = 6 及 x = -2
x = -1 and x = -3
x = -1 及 x = -3
x = 1 and x = 3
x = 1 及 x = 3
Tags
CCSS.HSA.REI.B.4
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Solve x2 + 4x - 40 = -8 :
解 x2 + 4x - 40 = -8 :
-10 and -4
-10 及 -4
-4 and 10
-4 及 10
-8 and 4
-8 及 4
8 and -4
8 及 -4
Tags
CCSS.HSA.REI.B.4
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
solve 2x2 + 2x - 12 = 0 :
解 2x2 + 2x - 12 = 0 :
-2, 3
Tags
CCSS.HSA.REI.B.4
CCSS.HSA.CED.A.1
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Solve 2x2 + 7x - 15 = 0
解 2x2 + 7x - 15 = 0
-1.5 or 5
-1.5 或 5
No Solution
沒有解
-5 or 1.5
-5 或 1.5
0.7 or 5
0.7 或 5
Tags
CCSS.HSA.REI.B.4
CCSS.HSA.APR.B.3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Solve the equation 3x2 - 14x + 15 = 0.
解方程 3x2 - 14x + 15 = 0。
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The x-intercepts of the graph of y = 20x2 + 7x – 6 are
y = 20x2 + 7x – 6 的圖像的x截距是
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The x-intercepts of the graph of y = x2 – 9x – 36 are
y = x2 – 9x – 36 的圖像的x截距是
–3 and 12.
–3 和 12。
3 and –12.
3 和 -12。
–4 and 9.
–4 和 9。
4 and –9.
4 和 -9。
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