Is that the whole question?
The answer <span>5 was added to each side.
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x² + 5x + 126 = x² + 17x + 66
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Subtract x² from both sides:
x² + 5x + 126 - x² = x² + 17x + 66 - x²
5x + 126 = 17x + 66
126 - 66 = 17x - 5x
60 = 12x
x = 60/12
x = 5
Thus, <span>5 was added to each side.</span>
The point-slope form would be written as:
y - y1 = m(x-x1)
<span>1. Select the proper equation in point-slope form for the given point and slope.
Point: (1, 9); Slope: 5
y – 9 = 5(x – 1)
Question 2.2. Select the proper equation in point-slope form for the given point and slope.
Point: (–8, 3); Slope: 6
y – 3 = 6(x + 8)
Hope this answers the question. Have a nice day.</span>
Answer:
see below
Step-by-step explanation:
Because there is the right angle symbol on the chart these angles are complementary meaning thety have a sum of 90°.