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Literal Equations
Inverse Functions
Finding Equations
Basic Log Properties
Percents
100
P = NRT, solve for R
R = P/NT
100
f(x) = 2x + 1
y = (x-1)/2
100
Find the equation of a line that has a slope of 1 and goes through the point (1,2)
y = x + 1
100
log(base 3) x = 2
x = 9
100
Find 6% of 80 without a calculator
4.8
200
3x - 6y = 30, solve for x
x = 2y + 10
200
f(x) = 4x + 10
y = (x-10)/4
200
Find the equation of a line that is parallel to y = 3x - 5 and goes through the point (2, 9)
y = 3x + 3
200
log (base 2) x = 5
32
200
What is 5% of 80 WITHOUT A CALCULATOR!
4
300
A = a+b+c/3, solve for b
3A - a - c = b
300
f(x) = 1/2x - 3
y = 2x + 6
300
Find the equation of a line perpendicular to y = 2x + 3 and through the point (2, 2)
y = -1/2x + 3
300
log(base 5) x = 3
125
300
41% of 78 is what?
32
400
x = 2y - z / 4, solve for z
z = -4x + 2y
400
f(x) = 3/4x - 2
y = 4/3x + 8/3
400
Find the equation of a line perpendicular to the line y = -3/5x - 15 through the point (3, 10)
y = 5/3x + 5
400
log(base 3) 9 = x
x = 2
400
6% of 550 is...
33
500
y = tc - bc, solve for b
t - (y/c) = b
500
f(x) = -5/2x + 1
y = -2/5x + 2/5
500
Find the equation of a line parallel to y = 9/10x - 2 through the point (10, 20)
y = 9/10x + 11
500
log(base 2) 128 = x
x = 7
500
88% of 9000 is...
7920