So you have y-y1=m(x-x1) and you are told that the slope has to be parallel to the line x-2y=6
1.) solve x-2y=6 for y
x-2y=6
Subtract x from both sides to get
-2y=6-x
Divide each side by -2 to get
y=-3-(x/2)
Now the slope for this equation is -1/2 and the line has to be parallel to this equation. Therefore the slope of the line that is parallel to this equation is going to be -1/2.
Now You have to use the point (2,-5) as your x1 and y1 and the slope that is parallel to the line x-2y=6, which is -1/2
y-(-5)=-1/2[x-(-2)]
Simplifying this you get
y+5=-1/2(x+2)
Above is how you write the equation in point slope form.
Now if it is asking you for slope-intercept form all you do is distribute -1/2 and subtract 5
y+5=-1/2(x+2)
y+5=-1x/2-1
Subtracting 5 from both sides gives you
y=-x/2 +4. Hope this helps. Let me know if you have questions
Answer:
y = -5x - 1
Step-by-step explanation:
Note that as x increases from -2 to -1, y decreases from 9 to 4, a drop of 5.
Similarly, if x increases from 0 to 1, y decreases from -1 to -6, a drop of 5.
Thus, this table represents a decreasing linear function.
The slope of this line is m = rise / run = -5 / 1, or just -5.
Using the point-slope formula for the equation of a straight line:
y -k = m(x - h). Here, the slope, m, is -5, and one point on the line is (0, -1).
Thus, we have y + 1 = -5(x - 0), or y = -5x - 1.
The "function rule" here is y = -5x - 1, a linear function.
Answer:
if we minus total medicine- decreases medicine in a min we get
.b) it is the difference between the initial amount and the amount of decrease after m minutes
Answer:
its c for sure thhaankkkk