1) divide 4 out of the θ equation
2) make a baseline for what a regular cos(θ) five points would be
3) by order of operations now we multiply each of the values by 4
4) then we make common denominators between 8ths and 9ths and minus the equivalent of 4/9 in 72nds from each value
5) when we get these values we now find our scale which can easily be π/36 so each half a mark is π/72 which is what our values are in. This is what each x-value is equal to.
6) your y scale can be 1 this will make it easy to stretch your graph 3 boxes up and down
7) lastly take into account that you will have to move your graph three plots down from its original position and then plot the points
1) subtract 13 on both sides of the equation
2) subtract 5sin on both sides of the equation
3) divide both sides by 2
4) we know that sin=1 at
π/2 so we now set what is inside our sin equal to this value and we can add or subtract 2πn from this value because it would be a coterminal angle
5)subtract 4π/3*(sqrt. Of 2) on both sides
6) multiply 4π/3*(sqrt. Of 2) by (sqrt. Of 2)/(sqrt. Of 2) to get the irrational off the bottom
7) make common denominators between our two values added and combine them
8) set this combined value equal to 8θ
9) divide both sides by 8
10) now add or subtract πn/4 to the value as many times within 0 and 2π
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