1.1 Review of Functions
Given f(x) = x2 and g(x) = x+6. Find g(f(x)).
g(f(x)) = x2+6
Find the equation of a line that passes through the points (0,2) and (3,7).
y=5/3x+2
What is the reciprocal of the trigonometric function cos(x)?
sec(x)
Find the inverse of the function f(x)=3x-4
x+4/3
What are the degrees of the unit circle?
check with jaimee
Simplify the difference quotient: f(x) = 2x2-x+3
4x+2h-1
What type of shift is in the function: f(x) = (x-2)2
Horizontal shift: 2 right
Draw a graph of the function cos(x)
check with jaimee
Find the inverse function of the function: f(x)=1/2x+1
2x-2
What are the radians of a unit circle?
check with jaimee
Identify the symmetry of the function: f(x)=x3+4x2-2
Neither odd not even.
What type of shift is in the function: f(x)=-x3
Reflection across the x-axis
Evaluate the expression: sec(π)
-1
If y=log636. What is the value of y?
y=2
What are the coordinates of a unit circle?
check with jaimee
Simplify the difference quotient: f(x)=x3+2x
Find the equation of a line that passes through the point (1,2) and has a slope of 1/2.
y= 1/2x+3/2
Evaluate the following expression: sin(8π/3)
√3/2
If 2=logb225. What is the value of b?
b=15
How do sin, cos, and tan relate to the hypotenuse side, opposite side, and adjacent side of a triangle?
sin = opp/hyp, cos=adj/hyp, tan = opp/adj