Explanation for Question 22 From the Math (Calc) Section on the 2019 March Sat
Question 22 says the graph of the exponential function G and the X, 2 Y plane passes through the points 0 1, 1, 4, 3 and two 16, which of the following is not true. 4 So I've gone ahead and I've drawn a graph down here and plotted those 5 data points that we were given. So this is what the function looks like. 6 So we want to know, is it possible to draw a line that intersects 7 this graph at zero points, 1.2 points and three points. 8 So let's start with zero points. If I drew a line like this, 9 for example, that line would never intersect this graph, 10 which means that it is possible to draw a line that intersects it at 11 zero points. What about one point? 12 Well, a line that looks like that would intersect the graph at 13 one point. So that's also possible finally, 14 two points align that looks something like this would intersect 15 the graph at two points. So that's also possible. 16 The only line that's not possible to draw is a line that intersects this, 17 uh, exponential function at three points. 18 So that means that the correct answer here is D.