Question

i need help with Question 2e? pleass help, i need it ASAP !!

This worksheet is done in pairs. After you are checked off you can leave or worn checked off you can leave or work on assignments. 1) What is the slope of the line through the points (-2, 0) and (1, -1)? ya-y- X2-ih 2) A scientist models the height (y) cm of seedlings as a function of time (t) in weeks: y = 1-2t + 4. A seedling is a young plant after it has been removed from a pot and planted in the ground. Quy a) What does the model predict the height of a seedling will be in 4 weeks? will be in a weekend cy 4=12 com b) Graph the model on the grid to the right for the time interval t: [0,4]. REDFECT EDGE MICRO - 2 c) Approximately how long does the model predict that it will take the seedling to reach a height of 10 cm +2-2+y = lo +2 -2t -6= 0 DE12_4 +-3651 +33.69 to 262 d) The scientist decides to do an experiment to validate the model. He makes measurements OY seedling at 0, 1, and 3 weeks and records the resulting heights as you in the table below. Fill in the rest of the table for the above model and plot the points on the above graph. Calculate the MSE and the RMS for the model. Prediction Squared actual predicted error 14h ett error O masz:{+0+4)/3 =1.33 r as: JC070 +)/3 - 1.153) .) Draw your best estimate of a linear model on the graph above. Also write the MATLAB statement to compute the linear model. Which model do you think is better? Explain why. AYALA

Answer 1

`Hey,

Note: If you have any queries related the answer please do comment. I would be very happy to resolve all your queries.

clc%clears screen
clear all%clears history
close all%closes all files
format long
t=[0,1,3];
y=[4,3,6];
A=[t(:) ones(numel(t),1)];
b=y(:);
disp('Coefficients of linear model is');
C=A\b
tt=0:0.01:5;
yy=polyval(C,tt);
plot(tt,yy,t,y,'o');

- 5 x Pradeep - 0 X 56 Search Documentation View Insert Tools Desktop Window Help A BO E I a X egg2.m x testc. mxahk. mx nse_filt. mx + A MATLAB R2018 HOME PLOTS APPS EDITOR Figure 1 E l Find Files Insert E fx Eile Edit 3 Compare - -Go To - Comment % 99 O New Open Save Print Find Indent 1 FILE NAVIGATE EDIT hal Windows System32 Current Folder Name 0409 1029 1033 1036 1040 1045 1046 1049 1055 3082 Advancedinstallers af-ZA am-et AppLocker appraiser Details O Workspace 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 Name HA Value [0,1;1,1;3,1] [4;3;6] [0.7857;3.2857] [0,1,3] 1x501 double [4,3,6] 1x501 double tt Hly Шуу script Ln 13 Col 21 ENG 2:06 PM US 03/27/20 Type here to search "

Kindly revert for any queries

Thanks.