Help Meh PleAse: Fill in the blanks Which functions have a positive rate of change and which have a negative rate of change?
Column A Column B
1.____ 2x + 3y = −9 A.Positive
B.Negative
2._______ y = 3x − 6
3.______
x y
−1 9
0 7
1 5
4.______
x y
2 −8
3 −7
4 −6
Answers
Answer 1
Answer:
Convert to slope-intercept form, y = mx + b.
Subtract 2x to both sides:
Divide 3 to both sides:
Now it's in slope intercept form, y = mx + b where 'm' is the slope. So the slope here is -2/3, which is Negative.
This is already in slope intercept form. So the slope here is 3, which is Positive.
For #3 and #4, take any two points from the table and plug them into the slope formula.
Let's take (0, 7) and (1, 5).
x1 y1 x2 y2
Subtract:
Divide:
So the slope is negative.
For #4, let's take (2, -8) and (3, -7)
x1 y1 x2 y2
%7D%7B3-2%7D)
Subtract:
Divide:
So the slope is positive.
Convert to slope-intercept form, y = mx + b.
Subtract 2x to both sides:
Divide 3 to both sides:
Now it's in slope intercept form, y = mx + b where 'm' is the slope. So the slope here is -2/3, which is Negative.
This is already in slope intercept form. So the slope here is 3, which is Positive.
For #3 and #4, take any two points from the table and plug them into the slope formula.
Let's take (0, 7) and (1, 5).
x1 y1 x2 y2
Subtract:
Divide:
So the slope is negative.
For #4, let's take (2, -8) and (3, -7)
x1 y1 x2 y2
Subtract:
Divide:
So the slope is positive.
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please explain!
Answers
Answer: -3
Step-by-step explanation:
-3x+ 7x+ 35= 5x + 38
You solve the distributive property on the left side and set it equal to the right
4x+35= 5x+38
-4x -4x
35= x+38
-38 -38
X=-3