The sum of a number and 9 is -7. What does that mean or what's the equation

x+9= -7

Step-by-step explanation:

What this statement means is that the sum or combining/adding of 9 and another number gives you -7 as the answer. We can write an equation to figure out what the other number is.

Let's use x as the unknown/other number.

x+9= -7

That is what your set up equation would look like. To solve for x, you simply subtract 9 on both sides.

x=-16

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.