PLZ EXPALIN THE PROCESS OF EVERY STEP YOU DID AND PLZ EXPALIN HOW U CONVERTED THE TABLE INTO GRAPH FUNKTION IN TI-inspire. ONLY 1 QUESTION VERY SHORT.

Plz explain the process of every step u did and show how u used ti inspire to convert the table into graph .

Its shows the height and breadth of lampshade.

In one model, the relationship between the height and width of the lampshades is described by a

linear function

f(x)= ax+b

where f (x) is the width (measured in cm) of a lampshade that is x cm high.

a) Determine the constants a and b by linear regression.

Mathilde wants a heart-shaped lampshade that is 70 cm high.

b) According to the model, how wide is this lampshade?