Question

eight-year-old alex is learning to ride a horse. the trainer says that a horse ages 5 years for every 2 human years. the horse is now 50 years old in human years. when alex was born (x=0), the horse was 30 years old. what is the y-intercept?
options: 50, 30, \\(\frac{5}{2}\\), 8

Explanation:

Step1: Define y-intercept meaning

The y-intercept is the value of $y$ when $x=0$.

Step2: Locate x=0 condition

When $x=0$ (Alex's birth), the horse's age is given as 30.

Step3: Match to graph/definition

On the graph, the line crosses the y-axis at $(0, 30)$, which is the y-intercept.

Answer:

○ 30