Parent Functions
Name all of the parent functions
Constant, Linear, Quadratic, Cubic, Square Root
Name the properties of equality
Solve for x:
y/12=77/84
y=11
The rate of change of a linear function is its _____ (Function or Slope)
Slope
Identify the type of parent function:
f(x)=x+5
Solve:
8(x-5)=72
14
Solve for the problem given:
At Clay High School, 434 students, or 35% of the students, play a sport. How many students does Clay High School have?
1240
Find the intercepts of the line:
5x+6y=30
x=6,y=5
Identify the type of parent function:
(x-3)2
Quadratic
The statement 4=4 is __
Identity or Contradiction
Identity
Latanya made a 17-minute phone call from her hotel in France and was charged 17 euro. At the time, $1 was worth .82 euro. Find the cost per minute of call in dollars.
$1.22
Determine if the line is horizontal or vertical and then graph.
x=10
Vertical. Show graph
For which function is -1 NOT an element of the range
A. y=-1
B. y=(-x)2
C. y=-x
D. y=x^3
B
Solve:
9(3-2x)=-6(3x-5)
No solution
Solve:
4/9=(r+3)/45
r=17
Write the function is slope-intercept format, give the x and the y intercept and then graph
x+y=-3
x=-3, y=-3
y=-x-3 or -(x+3)
Identify the parent function:
h(x)=(4x3)0+2
Constant
Does an inequality of the for ax>b always, sometimes, or never give the solution of form x>c? Show proof.
Sometimes; 2x>6 has a solution x>3, but if it was -2x>6 it would be x<-3
If a , b ,c and d cannot be 0 and a/b=c/d, then explain why d/c=b/a is also true.
If you cross multiply you would get ad=bc then divide a and c on both sides to get d/c=b/a.
The standard form of a linear equation is Ax+By=C
Find the slope and the y-intercept.
-A/B,C/B