Answer:y = - 2x + 17
Step-by-step explanation:
The equation of a line, represented in the slope-intercept form, is
y = mx + c
Where
Slope = m
c = intercept
Looking at the equation given,
y=1/2x + 8
Slope,m = 1/2
If a line is perpendicular to a another line, then the slope of one line is equal to the negative reciprocal of the other line. It means that the slope of the perpendicular line that passes through that passes through ( 4, 9 ) will be -2
To determine c,
We will substitute m = -2, y = 9 and x = 4 into the slope intercept equation,
y = mx + c. It becomes
9 = -2 × 4 + c
9 = -8 + c
c = 9 + 8 = 17
The equation becomes
y = - 2x + 17
D. Regular Pentagons
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Answer:x=40
Step-by-step explanation: So since we know that AD is parallel to BC We know that M<c and M<a are congruent so we can use this equation to solve for x
2x-20= x+20
+20 +20
2x=x+40
-x -x
x=40
When a population or group of something is declining, and the amount that decreases is proportional to the size of the population.
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Even though we might be inclined to use both of them, the one that would explain it best is a timeline where variables like time and consequences might be reflected. So i would incline more to the option A. Timeline.