Explanation for Question 3 From the Math (No Calc) Section on the 2019 May Sat
Question three states for the linear function, 2 H the table above show several values of acts and their corresponding values of 3 HVACs, which of the following defines H. 4 So basically what we need to do here is we need to take the 5 coordinates given to us in this table, 6 and we need to use those to create an equation. 7 Y equals MX plus B form. 8 This is cold slope intercept form. 9 The M represents the slope of the line and B represents 10 the Y intercept. So let's start 11 by finding the slope. So the way to do that is to use the 12 slope formula Y two minus Y one X 13 two minus X one, where we take two points from the table and we 14 plug them into this formula. So I'm just going to take the first two 15 points a to one and four, 16 seven, so seven minus one, 17 over four minus two. 18 And I get six over two, 19 which is equal to three. Now, 20 in this case, we don't actually have to find the Y intercept because there's 21 only one answer choice that has a slope of three, 22 and that's answer choice B. So we know that that is the correct answer 23 here.