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equation of a function is y = 4x – 1

1

2

. Find the value of y when

i. x = 12 ii. x =

By Savannah

equation of a function is y = 4x – 1

1

2

. Find the value of y when

i. x = 12 ii. x = 2 1

2

ii. x = –

1

2

Q. No. 3. (i) On a sheet of graph paper, using a scale of 2 cm to represent 1 unit on the

x-axis and 1 cm to represent 1 unit on the y-axis, draw the graph of the linear function y

= 2 1

2

x + 3 for the values of x from –3 to 3. (only consider three point of x as –3, 0 & 3 to

find value of y).

ii) The points (–2, a) and (b, 3) lie on the graph in (i). Find the values of a and of b.​

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Savannah

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2 thoughts on “equation of a function is y = 4x – 1<br /><br />1<br /><br />2<br /><br />. Find the value of y when<br /><br />i. x = 12 ii. x =”

  1. Step-by-step explanation:

    (i)Since (a,b) and (b,0) lie on the line y=8x+3 , they must satisfy this equtaion .

    →b=8a+3

    →0=8b+3

    Solving we get b=

    8

    −3

    and a=

    64

    −27

    (ii)Since (2,0) doesn’t satisy y=8x+3 ,therefore it is not its solution .

    Reply

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