When you round a number, which digits in the number you decide to round up or round down?

When we are rounding a number, the main rule is that if the number is greater than equal to 5, we round that to +1 number.

Like say you have to round 56.32. It will not round as .3 and 2 both are  less than 5.

If you have to round 63.98. It will round to 64. As the 8 will become 9 and 99 will become .00 with an addition of plus 1 in 63.

Now when you are rounding to places, it works differently.

Like 23120 to thousands place. It becomes 23000 as 3 is less than 5.

But if you round 28920 to thousand place, it will be 29000 as 8 is greater than 5.

step-by-step explanation:

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )