# In a linear relationship two data points are #(9,3)# and #(33,9)#. If the function is #y=mx+b#, we have?

##
(a) #m=4# and #b=-33#

(b) #m=1/4# and #b=3/4#

(c) #m=4# and #b=-123#

(d) #m=1/4# and #b=24#

(a)

(b)

(c)

(d)

##### 2 Answers

Looking at my calculations and your question's structure you have asked for the wrong thing. You need the value of

#### Explanation:

Let point 1

Let point 2

gradient

Answer is **(b)**

#### Explanation:

As the two data points given in

the linear relation is

i.e.

or

or

or

or

or

i.e.

Hence, while

and answer is **(b)**