Writing Trig Equations from Graphs No Phase Shift

Which is a correct equation for the graph shown?

• $y=2\sin x$

• $y=\sin2x$

• $y=\cos2x$

• $y=\sin\left(\frac{1}{2}x\right)$

Which is a correct equation for the graph shown?

• $y=\cos\left(\frac{1}{2}x\right)$

• $y=\sin\left(\frac{1}{2}x\right)$

• $y=\cos2x$

• $y=\frac{1}{2}\cos\left(x\right)$

Which is a correct equation for the graph shown?

• $y=3\sin\left(\pi x\right)$

• $y=\pi\sin\left(3x\right)$

• $y=\sin\left(\pi x\right)+3$

• $y=-3\cos\left(\pi x\right)$

Which is a correct equation for the graph shown?

• $y=-2\cos\left(\frac{\pi}{2}x\right)$

• $y=2\cos\left(\frac{\pi}{2}x\right)$

• $y=-2\sin\left(2\pi x\right)$

• $y=-2\cos\left(2\pi x\right)$

Which is a correct equation for the graph shown?

• $y=-4\sin x+2$

• $y=-4\cos x+2$

• $y=-4\sin\left(x+2\right)$

• $y=4\sin\left(x\right)+2$

Which is a correct equation for the graph shown?

• $y=\frac{1}{2}\cos\left(2x\right)-3$

• $y=\frac{1}{2}\cos\left(\frac{1}{2}x\right)-3$

• $y=\frac{1}{2}\cos\left(2x+3\right)$

• $y=\frac{1}{2}\sin\left(2x\right)-3$

Which is a correct equation for the graph shown?

• $y=\tan2x$

• $y=2\tan x$

• $y=\tan x+2$

• $y=-\tan2x$

Which is a correct equation for the graph shown?

• $y=4\tan\pi x$

• $y=\tan4x$

• $y=\tan\pi x+4$

• $y=-\pi\tan4x$

Which is a correct equation for the graph shown?

• $y=-3\tan x-5$

• $y=-\tan3x-5$

• $y=3\tan x-5$

• $y=-3\tan x$