Math Problem Statement

Determine the slope and y-intercept of the function h(x) = 5x + 4 and use this information to graph the function.

Solution

The image shows a problem about a linear function h(x)=5x+4h(x) = 5x + 4, with parts (a) and (b) visible. Let's break it down:

Part (a): Determine the slope and y-intercept of the function.

  • The function is in the form h(x)=mx+bh(x) = mx + b, where:
    • mm is the slope.
    • bb is the y-intercept.

From the given equation h(x)=5x+4h(x) = 5x + 4:

  • The slope m=5m = 5.
  • The y-intercept b=4b = 4.

Part (b): Use the slope and y-intercept to graph the linear function.

  • To graph this, start at the y-intercept (0, 4) on the y-axis.
  • Then, using the slope m=5m = 5, rise 5 units and run 1 unit to the right to find another point (1, 9).
  • Connect these two points with a straight line.

Would you like more details or assistance on any part?

Here are some follow-up questions:

  1. How do you interpret the slope in a real-world context?
  2. What happens to the graph if the slope is negative?
  3. How can you verify the y-intercept using a table of values?
  4. What is the significance of the x-intercept, and how can you find it?
  5. How would the graph change if the slope were fractional, like 12\frac{1}{2}?

Tip: When graphing a line, always plot the y-intercept first, then use the slope to find additional points.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Functions

Formulas

Slope-intercept form: y = mx + b

Theorems

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Suitable Grade Level

Grades 7-9