Confirming Data Table for Mars Lander Speed-Time Graph

[jacknjersey]

Homework Statement

Plot on a graph the speed-time graph for the Mars lander (Fig 2.2) and find its regression line
This should be y=3.7x+20
This tells you the initial speed was 20 m/s
and the acceleration due to gravity on Mars is 3.7 m/s2

Homework Equations

y=mx + b

The Attempt at a Solution

I just need confirmation on my data table:
Time Speed
0 20
1 23.7
2 27.4
3 31.1
4 34.8
5 38.5
6 42.2
7 45.9

 

[Redbelly98]

Hello,

It's pretty straightforward to check the equation with your data. If you let x equal 1, 2, 3, etc., what do you get for y? Does the value of y you get from the equation agree with the value of y in the table?