Linear Functions Math Example 4

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Example 4

easy
What are the slope and yy-intercept of y=−5x+7y = -5x + 7?

Solution

  1. 1
    Compare with y=mx+by = mx + b: m=−5m = -5 and b=7b = 7.
  2. 2
    Slope is −5-5; yy-intercept is 77.

Answer

Slope =−5= -5, yy-intercept =7= 7
Reading the slope and yy-intercept directly from slope-intercept form: the coefficient of xx is the slope, and the constant term is the yy-intercept.

About Linear Functions

A function whose graph is a straight line, characterized by a constant rate of change between any two points.

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More Linear Functions Examples

Example 1 easy

Write the equation of a line with slope [formula] and [formula]-intercept [formula].

Example 2 medium

Find the equation of the line through [formula] and [formula].

Example 3 medium

Write the equation of a line with slope [formula] that passes through [formula].

Example 5 hard

Convert [formula] to slope-intercept form.

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