Chapter 2 Test
LEVEL THREE Always, Sometimes, or Never True? 14+3x-7=7x+7-4x
Always
Find Domain/ Range, Determine Functionality (2,1) (-4,5) (1,7) (2,-3) (-1,2)
Domain: 2,-4,1,-1 Range: 1,2,7,-3,2 Function: No, domains repeat
When y=2 and x=6, find y when x=¾
Function rule: y=x/3 y=.25
8+6x-10=10x+11-4x
Never
12. x: 6,9,15 y:11,14,20
No
Parallel to y=3/2x+½ and thru (4,1)
idk
Solve the Function 6(x-4)+3x=10x+11-4x
x=2
LEVEL FOUR Golf balls must be within G balls of 300. Write compound inequality and an absolute value equation for an acceptable number of balls(b) in each box.
|b-300|≤6
-10≤2x-4<6
-3≤x, x<5; Closed dot pointing left, open dot pointing right
The diameter of a tree varies directly with age. A 15 year old tree has a 3.75 inch diameter. When will the tree have a 25 inch diameter?
100 years old
Solve, graph on line: 8≤2+2k
3≤k, Solid dot pointing right
Solve T=4u/E for U
U= ET/4
Does y vary directly with x? If so, write function rule 11. x: 3,5,8 y: 12,20,32
Yes, y=4x
Solve S= 5r²t for t
t= S/5r²
9x-5<-41 3x+13>7
x<-4, x>-2; Open dots pointing outwards
9-2x>5
x<2, Open dot pointing left
3|4x+3|-3= 6
x=0; x=-3/2
2 |14-4x|=4x+4
x=2, x=8
Solve Absolute Value |2x-1|=3
x=2; x=1
Solve: x-0.9=3
x=3.9
Solve Compound Inequality, Graph on Number Line 4x+3≥-17 and 7x-4≤10
x≥-5, x≤2; Solid dots pointing inwards
|2x+4|≥22
x≥9, x≤-13; Closed dots pointing outwards
Solve: -5y-9=-(y-1)
y= -5/2
Solve: -2y-4= 8-y
y=-12
Graph 4x-3y=-12
y=4/3x-4