1. Perfect square trinomials, are 2nd degree polynomials, of the form

so that

, which can be written as perfect squares.
2. For example

3. Thus

are perfect square trinomials.
4.

5. In the first case -b=20, so b=-20. In the second case, -b=-20, so b=20.
6. b∈{-20, 20}
<span>If point P(3,10) is reflected across the line y=1, the coordinates of it's reflection image is (3,-8)
Answer is C.
Hope it helps!
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I can tell this activity is about graphing, but the writing is barely legible, can you re-upload the pictures or write it out?
Y-intercept is (0,2) bc that’s where the line hits the y-axis.(the up and down line)
The slope is 1/2 because you go up one over two coordinate to get to the next dot.
The equation is y=Mx+b
M is the slope
X is the amount of times you use the slope
B is the initial value
Y=1/2x+2