Math, asked by pratheebha5, 1 year ago

Lengths' of
forehand (in cm)
45.5
35
45
Height ‘y
(in inches)
65.5
56
The data in the adjacent table depicts the length
of a woman's forehand and her corresponding
height. Based on this data, a student finds a
relationship between the height (y) and the
forehand length(2) as y = ar +b, where a, b
are constants.
(i) Check if this relation is a function.
(ii) Find a and b.
65
69.5
74
Lord Mathematics

Answers

Answered by amitnrw
4

Answer:

its is a function

a = 0.9

b = 24.5

Step-by-step explanation:

Length'x' of forehand (in cm )45.5, 35 , 45

height 'y'                (in inches) 65.45, 56, 65

then 0.45  = 0.5a

=> a = 0.9

56 = 0.9 *35 + b

=> b = 24.5

y = 0.9x + 24.5

65.45 = 0.9*45.5 + 24.5 =  65.45  TRUE

56 = 0.9*35 + 24.5 = 56  TRUE

65 = 0.9*45 + 24.5 =65  TRUE

Here its is a function

a = 0.9

b = 24.5

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