Linear Function Analysis: Finding Positive Values from Graph

Question

Look at the linear function represented in the diagram.

When is the function positive?

–8–8–8–7–7–7–6–6–6–5–5–5–4–4–4–3–3–3–2–2–2–1–1–1111222333444555666777888–5–5–5–4–4–4–3–3–3–2–2–2–1–1–1111222333000

Video Solution

Solution Steps

00:00 Determine when the function is positive?
00:04 The function is positive when it's above the X-axis
00:12 and negative when the function is below the X-axis
00:19 Let's find the point where the function crosses the X-axis
00:23 Here the axis is positive
00:28 And this is the solution to the question

Step-by-Step Solution

The function is positive when it is above the X-axis.

Let's note that the intersection point of the graph with the X-axis is:

(2,0) (2,0) meaning any number greater than 2:

x > 2

Answer

x>2

More Questions

Related Subjects

Linear Function Positive and Negativity of a Linear Function Function

Question Types

Positivity and Negativity: Identify positive and negative domains on a graph