To complete the addition expression −0.25+(−0.75) is an arrow pointing from -0.25 to -1.
Given: The line diagram and an addition expression: -0.25 + (-0.75)
What is an addition expression?
An addition expression is a combination of two or more numbers or characters with the binary operator of addition that is '+'.
As addition is a binary operation, so there should be a minimum of 2 operands.
What is a line diagram?
A line diagram shows the number line that has the initial point 0 at the center and number right to 0 are positive real numbers and numbers left to 0 are negative real numbers.
What is the significance of the arrow sign over the number line?
The arrow sign shows that after adding a certain quantity the former value decreases or increases that is it can either approach in the negative side or in the positive side. It can help us to plot directional graphs and help us to better understand how can adding a certain quantity change the behavior of the entire expression.
Let's solve the given question.
From the addition expression we can see that the first operand is -0.25.
-0.75 is then added to -0.25.
As -0.75 is less than 0 so adding -0.75 to -0.25 will make the entire expression smaller that is -1. -1 is smaller than each individual operand.
So, initial point of the arrow will be on point -0.25
now -0.25 + -0.75 = -1
The final point where the arrow head will point to is -1
Therefore, as we can understand the function is linearly decreasing so we are pointing the arrow to the left side that is conventionally the negative side. So it will be starting from the initial point at -0.25 and will gradually decrease to -0.75 amount and will finally turn the expression fall to the value of -1.
Hence, the answer will be an arrow pointing from -0.25 to -1
Know more on "mathematical expressions" here: https://brainly.com/question/19876186
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