For identifying the slope of a line, is easier if we get the equation to its slope-intercept form, that is:
y = mx + b
where m is the slope, and b is the y axis intercept. So we'll change the original equations and get them to this form:
<span>3y+ x= 12
3y = -x + 12
y = (-1/3) + 4
therefore the slope is -1/3 and the y-axis intercept is 4
-9x + 4y = 16
4y = 9x + 16
y = (9/4)x + 4
therefore the slope is 9/4 and the y-axis intercept is 4</span>
Answer: Number D is correct
Step-by-step explanation:
Because, they can both go in each other and, they are the opposite of each other
Answer:
The perimeter before is 5+4+5+4=18.
After doubling the length, we do 10+4+10+4=28.
The difference is 10, so the perimeter increases by 10.
