Question

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Answer 1

Part A: Option C

Part B: Option B

Explanation:

Part A:

We have to find the equation of a straight line having x-intercept at (3,0) and y-intercept at (0,2).

Now, using intercept form of straight line equation we can write the equation of the required straight line is
`(x)/(3) + (y)/(2) = 1`

⇒
`(y)/(2) = 1 - (x)/(3)`

⇒
`y = - (2)/(3) x + 2`

So, option C is correct. (Answer)

Part B:

See the graph of the straight line provided.

The straight line passes through the points (10, 80) and (20, 100)

Therefore, the slope of the straight line is given by
`(100 - 80)/(20 - 10) = (20)/(10) = 2`

therefore, option B is correct. (Answer)