## Algebra and Trigonometry 10th Edition

x = $\frac{15}{2}$
Another word for zeros is the x-intercept. An x-intercept is where the line crosses the x-axis. For this to happen, the y-value must be 0, so to find the zeros of the function, the equation must equal 0. 0 = 15 - 2x Overall, we want to separate the x from all other constants. The first step would be to subtract 15 from each side. 0 - 15 = 15 - 2x - 15 This gets: -15 = -2x We then want to divide each side by -2 to get the x alone. $\frac{-15}{-2}$ = $\frac{-2x}{-2}$ This gets: $\frac{15}{2}$ = x Since x = $\frac{15}{2}$ when y = 0, x = $\frac{15}{2}$ is a zero of the function.