Question

I need help answering this, having trouble It’s trig from my ACT prep guideI will send you another pic of the graph that goes along

Answer 1

Question:

Solution:

Step 1: graph the parent function f(x)=cos(x)

Step 2: We want to graph y = f(x+c) where c is π/2. To do this, shift the graph of y =f(x)=cos(x) to the left π/2 units:

So that, we can conclude that the correct answer is: