The squaring property of equality simply states that if two values are equal, then the squares of both of the values will also be equal. For example,
if A = B, then
A² = B² is also true.
It will equal (4,6) for x and y
F(x) = 8 - 3x
f(9) = 8 - 3(9)
= 8 - 27
= -19
hope this helps!
If two triangles are similar, then their side lengths are proportional.
RS / JK = RT / JL
5 / x = 4 / 7
4x = 35
x = 35/4 = 8.75
RT / JL = TS / LK
4 / 7 = 6 / (y + 2)
42 = 4(y + 2)
42 = 4y + 4
4y = 38
y = 38/4 = 9.5
LK = 9.5 + 2 = 11.5 cm
JK = x = 8.75
Hope this helps!