Write the expression (x + 4)(x - 1) in standard form.
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Question 9
9.
What is the maximum height of Rock A? (Round to the nearest tenth.)
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Question 10
10.
What is the maximum height of Rock B? (Round to the nearest tenth.)
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Question 11
11.
Explain how you know that Rock B will reach its maximum height first?
Question 2
2.
Write the expression (2x - 1)(3x - 1) in standard form.
Question 3
3.
Explain why the expression 8 - 6x + x2 is not in standard form.
Question 4
4.
Explain or show why the expression (x - 4)(x - 2) is equivalent to 8 - 6x + x2.
Question 5
5.
Which quadratic expression is written in standard form?
Question 6
6.
Explain why 3x2 can be said to be in both standard form and factored form.
Question 7
7.
Jada dropped her sunglasses from a bridge over a river. Which equation could represent the distance y fallen in feet as a function of time, t, in seconds?
Question 8
8.
Select all the statements that are true about this situation.
A. The football is thrown from ground level.
B. The football is thrown from 6 feet off the ground.
C. In the function, -16t2 represents the effect of gravity.
D. The outputs of h decrease then increase in value.
E. The function h has 2 zeros that make sense in this situation.
F. The vertex of the graph of h gives the maximum height of the football.
