<em>HOPE</em><em> </em><em>THIS</em><em> </em><em>WILL</em><em> </em><em>HELP</em><em> </em><em>U</em><em>.</em><em>.</em><em>.</em><em>.</em><em>✌</em><em>✌</em><em>✌</em><em>✌</em>
If this is supposed to be

Then this can simply be reduced to

by the double angle formula for cosine
The y-intercept is (0, -8)
if you set the equation to slope intercept format you get
y=-2x-8
Answer:
b. Bias- Spring balance shows variation in measurement due to fluctuations in room temperature
Step-by-step explanation: