# Chapter 1 - Precalculus Review - 1.2 Linear and Quadratic Functions - Exercises: 1

Slope = 3 Y-intercept = 12 X-intercept = -4

#### Work Step by Step

Because the number preceding x in the formula is 3, we know that the slope of the line is 3. To find the y-intercept, we set x = 0. $y = 3(0) + 12$ $y=12$ To find the x-intercept, we set y = 0. $(0) = 3x + 12$ Then subtract 12 from both sides. $-12 = 3x$ And divide by 3. $-4 = x$

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