As you might be known that the opposite sides of a rectangle are equal.
so,
the perimeter of a rectangle becomes
length + breadth + length + breadth
2 length + 2 breadth
2 (length + breadth)
apply the terms,
2 (3x +5 + 3x^2+ 6x -10)
= 2 ( 3x^2 +9x -5)
= 6x^2 + 18x -10 units.
7x - 4y = -28
3x +4y = -12
Using the elimination method because y is already eliminated
10x = -40
So x = -4
Then plug the -4 into the first equation....
7(-4) - 4y = -28
-28 - 4y = -28
-4y = 0
y = 0
I got: -4,0
For this case we have that by definition, the equation of a line in the slope-intersection form is given by:
Where:
m: It is the slope of the line
b: It is the cut-off point with the y axis
We have the following points:
Substituting we have:
Thus, the equation is of the form:
We substitute one of the points and find "b":
Finally, the equation is of the form:
Answer:
Answer:
84
Step-by-step explanation:
Answer:
Step-by-step explanation:
<em>1).</em>
(a). Yes, the graph is linear.
(b). Rate of change is a slope m, m = (60 - 80) / (10 - 0) = - 2
<em>2).</em> Graph is not proportional, because y-intercept is (0, 80) and not (0, 0)
