Texas Instruments TI-30XS User Manual - Page 35
at 55 kph. - how to use -
 |
UPC - 033317190379
View all Texas Instruments TI-30XS manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 35 highlights
Change Anthony's last score from 11 to 15. v $$$ 15 $ %t1 $$ < If the teacher adds 4 points to Test 4, Anthony's average grade is 12. ³ Problem The table below gives the results of a braking test. Test No. 1 Speed 33 (kph) Braking 5.30 distance (m) 2 49 14.45 3 65 20.21 4 79 38.45 Use the relationship between speed and braking distance to estimate the braking distance required for a vehicle traveling at 55 kph. A hand-drawn scatter plot of these data points suggest a linear relationship. The TI-30XS MultiView™ calculator uses the least squares method to find the line of best fit, y'=ax'+b, for data entered in lists. v v 4 33 $49 $ 65 $ 79 $ " 5.3 $ 14.45 $ 20.21 $ 38.45 $ %t 2 Copyright © 2006 Texas Instruments Incorporated 35
-
1 -
2
-
3
-
4
-
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
-
15
-
16
-
17
-
18
-
19
-
20
-
21
-
22
-
23
-
24
-
25
-
26
-
27
-
28
-
29
-
30 -
31 -
32 -
33 -
34 -
35 -
36 -
37 -
38 -
39 -
40 -
41
-
42
-
43
-
44
 |
 |
Copyright © 2006 Texas Instruments Incorporated
35
Change Anthony’s last score from 11 to 15.
If the teacher adds 4 points to Test 4, Anthony’s average
grade is 12.
³
Problem
The table below gives the results of a braking test.
Use the relationship between speed and braking distance to
estimate the braking distance required for a vehicle traveling
at 55 kph.
A hand-drawn scatter plot of these data points suggest a
linear relationship. The TI-30XS MultiView™ calculator uses
the least squares method to find the line of best fit,
y
'=
ax
'+
b
,
for data entered in lists.
v $$$
15
$
%t
1
$$
<
Test No.
1
2
3
4
Speed
(kph)
33
49
65
79
Braking
distance
(m)
5.30
14.45
20.21
38.45
v v
4
33
$
49
$
65
$
79
$ "
5.3
$
14.45
$
20.21
$
38.45
$
%t
2