25x^2 - 16 =
(5x + 4)(5x - 4) <==
The sequence is changing the number -8 is multiplied by by 1 less than the previous number.
The next sequence would be -8 x -1 = 8
The answer would be D.
F(x) = x² + 4
y = x² + 4
First, I reverse the equation to be
x² + 4 = y
Second, we need only x to remain on the left side and we need to move the others to the right side
x² + 4 = y
x² = y - 4
x = √(y - 4)
Last, change into invers function
f⁻¹(x) = √(x - 4)
A true proportion is an equation that states that two ratios are equal.
1) The given ratios in their lowest form are:

The two ratios are not equal.
2) The given ratios in their lowest form are :

The two ratios are not equal.
3) The given ratios in their lowest form are :

The two ratios are equal and hence it is True proportion
4) The given ratios in their lowest form are :

The two ratios are not the same .
The third option the ratios
are in true proportion.
So 12/14 =6/7
so we multiply this by 21 to see how many games they will win
6/7 times 21/1=(6*21)/7=(6*3*7)/7=6*3=18