narrowest graph?
Day 36 Review for TEST 1-2 (alg2)

Quiz
•
Mathematics
•
11th Grade
•
Medium
Adam Sonne
Used 6+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A
B
C
D
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
find the min or max of y = x^2 - 2x + 2
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the transformations of the function?
Reflection across the y-axis and vertical shift of 5 units up.
Reflection across the x-axis and horizontal shift of 5 units to the left.
Reflection across the x-axis and horizontal shift of 5 units to the right.
Reflection across the y=axis and vertical shift of 5 units down.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
which function represents the data?
a
b
c
d
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
what is the vertex of the parabola in the graph?
a
b
c
d
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Select all the statements that are true for y = - (x - 3)^2 + 4
(select THREE)
The vertex is (3,4)
The maximum value is 3
The function is increasing on (-infinity, 3)
the axis of symmetry is x=3
the function is decreasing on (-infinity, 4)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Remember to find our regression line, line of best fit, we use technology like Desmos' Graphing Calculator.
Steps for Desmos:
1) Enter the table of points
2) In spot #2 type: y1∼a(x1−h)2+k
remember Desmos will automatically format the 1's to be subscripts
remember this is our generic quadratic just we are identifying that we want the calculator to use the x and y from the table of step 1.
3) Desmos generates the line and tells you:
r2 = how close your data was to this line
(close to +1 or -1 is strong (i.e. good); close to 0 is weak)
a = the a for your equation
h = the h for your equation
k = the k for your equation
4) Write the parabola's equation down using those values and use it to make predictions.
19000
18000
14000
11000
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