Answer: Option B
B. 
Step-by-step explanation:
We have the following equations:
(1)
(2)
Let us call "a" the coefficient of the variable x in the first equation and call "b" the coefficient of the variable x in the second equation.
Then we must multiply the number "a" by a value z such that when adding
the result is zero.

So

We solve the equation for z


The first equation must be multiplied by a value of 
Answer:
point V b/c the absolute value of 5 is 5 and thats the hightest
Step-by-step explanation:
please mark brainlest
Answer:
see the explanation
The graph in the attached figure
Step-by-step explanation:
we have

This is the equation of a line in slope intercept form

therefore
The slope is positive
The y-intercept is the point (0,7)---> (value of x when the value of y is equal to zero)
The x-intercept is the point (-7,0) ---> (value of y when the value of x is equal to zero)
To graph the line plot the intercepts and join the points
see the attached figure