Question

What numbers are 1.4 units from −3.2 on a number line? pick one from both sets of answers

a.-4.6
b. -4.4
c.-4.2
d. -4.0
a.-2.2
b.-2.0
c.-1.8
d.-1.6

Answer 1

it is c or a of them not sure

Answer 2

The numbers which are 1.4 units from −3.2 on a number line are:

a. -4.6

c. -1.8

Explanation:

We are asked to find the points which are:

1.4 units from −3.2 on a number line.

i.e. the number may lie at a distance of 1.4 units from -3.2 i.e. it may be 1.4 units to the right or to the left of -3.2.

i.e. we get:

|-3.2-x|=1.4

i.e.

-3.2-x=1.4 or -3.2-x= -1.4

i.e.

x= -3.2-1.4 or x=-3.2+1.4

i.e.

x= -4.6 or x= -1.8