Sets of Real Numbers
2
real, rational, integer, whole number
write in scientific notation: 175
1.75x10^2
4n-9=-9
n=0
Identify the slope and y-intercept: y=-5x+3
m=-5 y-int=3
2x−3y=−1
y=x−1
(4,3)
pi
real, irrational
Write in standard notation: 7.13x10^6
7,130,000
6+(x/2)=4
x=-4
Identify the slope and y-intercept: y=(1/3)x+14
m=1/3 y-int=14
−4x − 2y = −12
4x + 8y = −24
(6,-6)
4/5
real, rational
Write in standard notation: 0.00314
3.14x10^-3
-2r-2<4
r>-3
y=4
−6x + 5y = 1
6x + 4y = −10
(-1,-1)
real, rational, integer
Write in standard notation: 2.1x10^-5
0.000021
3+(b/9)>4
b>9
solve for y: 2x-8y=6 where x=-5
y=-2
y = 5x − 7
−3x − 2y = −12
(2,3)
-sqrt(25)
real, rational, integer
Write in scientific notation: 9,134,000
a-2+3+2a=10
a=3
Write the equation of a line with a slope of -4 that passes through (-2,5)
x-2y=1
−2x − y = −9
5x − 2y = 18
(4,1)