Download Semester Review Warm Up #3

Semester Review Warm Up #3
Fall Semester
1. Order the number from least to greatest.
5
7
, -3, 7, - , -3.9
6
5
2. Which numbers are irrational?
7
7
, 3.4141..., p , - , 19, -3, 9
3
5
3.
Dillon’s mother is preparing y gift bags for guests at Dillon’s graduation party.
His mother buys 8 times as many gift bags as the number of guests x. Express
the relationship with an equations.
y = ___________________
Is the relationship between x and y
proportional? ____________
4. The graph shows a relationship between number of calories and the amount of
time it takes to burn the calories. Write an equation that models the calories
burned. Is the relationship proportional or non-proportional?
5. The graph shows a relationship between the speed of an object and the time
it takes it to stop. Write and equation that models the slowing down of the
object.
The y-intercept is ___________.
What does the y-intercept
represent?
__________________________
The slope of the line is
___________.
Equation: __________________
6. The height of the mirror is 70 ft. Between which two
consecutive whole number is 70?
7. Solve for x.
-2x + 10 + 3x = 6 + 2x + 5
1. Order the number from least to greatest.
5
7
, -3, 7, - , -3.9
6
5
7
5
5
6
-3.9, -3,- , ,
7
2. Which numbers are irrational?
7
7
, 3.4141..., p ,- , 19, -3, 9
3
5
3.
p and 19
Dillon’s mother is preparing y gift bags for guests at Dillon’s graduation party.
His mother buys 8 times as many gift bags as the number of guests x. Express
the relationship with an equations.
8x
y = ___________________
Is the relationship between x and y
yes
proportional? ____________
4. The graph shows a relationship between number of calories and the amount of
time it takes to burn the calories. Write an equation that models the calories
burned. Is the relationship proportional or non-proportional?
19.5
slope :
= 9.75
2
Equation: y = 9.75x
Proportional-the line starts at the origin
5. The graph shows a relationship between the speed of an object and the time
it takes it to stop. Answer the questions and write an equation that models the
slowing down of the object.
420
The y-intercept is ___________.
What does the y-intercept
represent?
Beginning speed of the object
__________________________
The slope of the line is
-42
= -42
1
___________.
Equation:
y = 420 – 42x
6. The height of the mirror is 70 ft. Between which two
consecutive whole number is 70?
64 ® 70 ® 81
8
9
The two consecutive whole numbers are 8 and 9.
7. Solve for x.
-2x + 10 + 3x = 6 + 2x + 5
x + 10 = 2x + 11
Combine like terms
-x
-x_____ variable on both sides-zero one out
10 = x + 11
-11 =
-11
-1 = x
Problems from your review that
you need to study for the test.
rise 19.5 9.75
=
=
run
2
1
You burn 9.75 calories
per minute.
10.
8
rise 2 1
= =
run 4 2
11.
13.
The table represents a (linear, nonlinear) function.
1
1
1
1
1
change - y
3
=
change - x
1
3
3
3
3
3
Since the rate of change is constant it is linear.
2
x
3