Q) What does the gradient of the line represent? The following axis (image) is to be used for currency conversion.

What does the gradient of the line represent?
a)the rate that the exchange rate changes daily.
b)The exchange rate from dollars to pounds sterling.
c)The exchange rate from pounds to dollars sterling.
d)The amount of dollars you get for a pound.

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,