It is wise to use your calculator to create a table to help out.
 
x
m
tan line equation
y
0
 .  .
1
.1
-1
 y = -1(.1) + 1
.905
.2
-.805
 y = -.805(.1) + .905
.829
.3
-.629
 y = -.629(.1) + .829
.770
.4
-.47
 y = -.47(.1) + .770
.727
.5
-.327
 y = -.327(.1) + .727
.697
.6
-.197
 y = -.197(.1) + .697
.681
.7
-.081
 y = -.081(.1) + .681
.675
.8
.025
 y = .025(.1) + .675
.680
.9
.12
 y = .12(.1) + .680
.694
1
.206
 y = .206(.1) + .694
.717
1.1
.283
 y = .283(.1) + .717
.747
1.2
.353
 y = .353(.1) + .747
.784
1.3
.416
 y = .416(.1) + .784
.827
1.4
.473
 y = .473(.1) + .827
.876
1.5
.524
 y = .524(.1) + .876
.929
1.6
.571
 y = .571(.1) + .929
.987
1.7
.613
 y = .613(.1) + .987
1.050
1.8
.65
 y = .65(.1) + 1.050
1.116
1.9
.684
 y = .684(.1) + 1.116
1.185
2
.715
 y = .715(.1) + 1.185
1.257

 
 


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