Fill in the Blank : Each correct answer earns 1 point. Suppose f[x] = 18 + 2.25); 0 Find the pre-image of 6.75 under f? X = Problem Set B3 - Find the Zero of a Linear Function (Fill in the Blank) Fill in the Blank : Each correct answer earns 1 point. Suppose x] = 18 + 2.25): 0 What is the zero of f? X = Problem Set B4 - Find the YIntercept of the Graph of a Linear Function (Fill in the Blank) Fill in the Blank : Each correct answer earns 1 point. Suppose for) = 18 + 2.25X 0 Find the y-intercept of the graph of f. y-intercept : Problem Set B5 - Find the Slope of the Graph of a Linear Function (Fill in the Blank) Fill in the Blank : Each correct answer earns 1 point. Suppose x) = 18 + 2.25X