A linear equation is drawn as a straight line on a set of axes. To draw the graph we need coordinates. We generate these coordinates by substituting values into the linear equation. STEP 1 - Draw ...

We need to find the equation or expression that will match this story problem. So one of the key words that I heard was the word more, which tells me I'm going to need to add. So I'm also going to ...

But what if you could use your smartphone to solve equations by pointing the camera at the problem in your textbook instead of using a graphing calculator? That is the idea behind PhotoMath.