The bullets here are short lines and you could move the text to place an image to the left part of the slide. Select the bullet area and drag it to the right. If you want, place a graphic image in the left area. Go to Slide 4, about the grid. Select the bullet area and then drag on the middle handle at the right side.
Every slide normally has three layers that make up the slide.
The bottom layer is called the background . When you select from a gallery, you are selecting the bottom layer for your presentation. Over the background layer is the layout layer . This controls the general position and type of content for each slide. The layout layer determines the fonts and placement of the elements in a template, like the title, subtitle, bulleted chart, etc.