Well since the line is headed to the left side, you know it has a negative slope, so B and C can be crossed out. Then, you know that point-slope form is written as y - y1 = m (x - x1)
So, you just plug in the numbers given on the graph, (4,-2)
You should come out with y + 2 = -2 (x - 4)
And that's the equation of the line in point-slope form!!! :)
Hope it helped and you understand it better!
D.) y + 2= -2 (x - 4)
Answer:
c is what i think
Step-by-step explanation:
Answer:
The two ordered pairs you can use is (4, 3) and (8, 4). You can plot these and draw a straight line through these.
Step-by-step explanation:
In order to find the graph of the follow, first solve for y.
-8 + x = 4y - 16
-4y - 8 + x = -16
-4y -8 = -x - 16
-4y = -x - 8
y = 1/4x + 2
Now that we have this, we can find two points by choosing any two x's and solving for the y. For this case, we'll use 4 and 8.
y = 1/4x + 2
y = 1/4(4) + 2
y = 1 + 2
y = 3
So the first ordered pair is (4,3)
y = 1/4x + 2
y = 1/4(8) + 2
y = 2 + 2
y = 4
So the second would be (8. 4)
Answer:
x= 10,-2 (so basically x=10)
Step-by-step explanation:
Input each answers
A) Look at the coordinates of the four dots:
(0,0) (150,50) (300,100) (450,150)
Divide the x's by the y's ( other than the (0,0) one:
150/50 = 3
300 / 100 = 3
450/150 = 3
The ratio is the same for all of them and the first set is (0,0) so it is a direct variation graph.
B) The constant of proportionality is the ratio found above by dividing the X values by the Y values, which is 3.
