Exponents (Light)
Exponents (Heavy)
Evaluating Functions
Key features of functions
Linear
100
(x4)(x8)
x12
100
(x3y4)4
x12y16
100
f(x) = 3x-2
Find f(4)
f(4) = 10
100
What is the domain and range?
D: (-infinity , infinity)
R:(-infinity , infinity)
100
A line has a slope of -3 and goes through the point (0,2). Write the equation.
y=-3x+2
200
y0
1
200
(5x3y2)(3x4y2)
15x7y4
200
g(x) = 2x2-3
Find g(3)
15
200
What is f(1)?
What is f(4)?
f(1) = 0
f(4) = 3
200
What is the slope of the line y=4x+7?
Slope is 4
300
(b4)5
b20
300
(12x6y7)/(6x2y5)
2x4y2
300
h(x) = 5x2 + 7x
Find h(4)
h(4) = 115
300
What is the domain and range?
D: (-infinity , infinity)
R: (-infinity , infinity)
300
Find the equation that goes through the points (0,5) and (4,-7)
y=-3x+5
400
x-6
1/x6
400
(x-4y3)3
y9/x12
400
h(x) = 5x2 + 7x
Find h(-4)
h(-4) = 48
400
What is f(2)?
What is f(0)?
f(2) = 0
F(0) = -2
400
Find the equation that goes through the two points (-4,15) and (2,45)
y=5x+35
500
x9/x4
x5
500
(4x2y4)(2x3y3)3
32x11y13
500
k(x) = 2x2- 4x
Find k(12)
k(12) = 240
500
What is an x-intercept?
What is a y-intercept?
x-intercept is where the graph crosses the x-axis and y=0
y-intercept is where the graph crosses the y-axis and x=0
500
Does the equation y=4x+3 go through the point (-2,-5)?
Yes.