Question

Where is the blue dot located on the number line

Answer 1

Answer: -19

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Step-by-step explanation:

Use the midpoint formula to find the midpoint of -10 and -4

A = -10 = left endpoint

B = -4 = right endpoint

C = midpoint of A and B

C = (A+B)/2

C = (-10+(-4))/2

C = -14/2

C = -7

The value -7 is exactly midway between -10 and -4, so that's the missing tickmark between those values. Consequently, it also means each gap is 3 units wide (i.e., distance from -10 to -7 is 3 units).

Start at -10 and subtract 3 to move to the left by that amount. Do this three times to follow this pattern:

• move from -10 to -13
• move from -13 to -16
• move from -16 to -19

The blue dot is located at -19

Answer 2

-19 it goes back by threes so count back and you get negative 19