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Welcome to our Wiki Page for our period 4 class -

Section 3-3 for Marking Period Review Dylan: First you need to graph the linear inequalities and when they are graphed, because of the inequality signs, they will be shaded a certain direction ,whether it is greater than or less then on the y or x-axis, and the area where all the shaded areas from the inequalities meet is the region that should be shaded for the solution set of a system of linear inequalities.

Section 5-6 for Marking Period Review Dylan: This is the quadratic formula with simple directions in the center on how to complete it.

5-1 Translation of a Parabola f(x)=a(x-h)2+k a= the reflection across either axis and a stretch or compression h=the horizontal translation k=the vertical translation Horizontal Translation f(x)= x2 f(x-h)=(x-h)2 If h is less then 0 the parabola moves to the left If h is greater then 0 the parabola moves to the right

Vertical Translation f(x)=x2 f(x)+k=x2+k If k is less then zero the parabola moves down If k is greater then 0 the parabola moves up

Reflections f(x)=x2 f(-x)=(-x)2=x2 This if a reflection over the y-axis

-f(x)=-(x2) = -x2 This is a reflection over the x-axis

Stretch or Compression Horizontal f(x)= x2 f(1/b(x))=(1/b(x))2 If the absolute value of b is greater then 1, it stretches away from the y-axis If the absolute value of b is greater then 0 but less then 1 it compresses toward the y-axis

Vertical f(x)= x2 a*f(x)= ax2 If the absolute value of a is greater then 1 the parabola stretches away from the x-axis If the absolute value of a is greater the 0 but less then 1 the parabola compresses toward the x-axis