Which of the following expressions represents the distance between -\dfrac34−
4
3

minus, start fraction, 3, divided by, 4, end fraction and -0.2−0.2minus, 0, point, 2 on a number line?
Choose 1
Choose 1

The distance between the two values on the numberline is 0.55unit

A number line is a line consisting of a positive and negative values.

the distance between the value -3/4 and  -0.2 on the numberline is expressed as:

Distance = -0.2 - (-3/4)

Distance = -0.2 + 0.75

Distance = 0.55 units

Hence the distance between the two values on the numberline is 0.55

Learn more on number line here: link

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb