Question

Write the equation of a line that meets all the following requirements:

Has an x-intercept at (5,0)
Has a negative slope
Write the equation in Standard Form
Write the equation is Slope-Intercept Form
Explain
How you know your line has an x-intercept of (5,0)
How you know your line has a negative slope
How you converted from one form to the other

Answer 1

9514 1404 393

Answer:

• x + y = 5
• y = -x + 5

Explanation:

We can start with the point-slope form of the equation for a line. To meet the given requirements, we can use a point of (5, 0) and a slope of -1. Then the equation in that form is ...

y -0 = -1(x -5)

Simplifying gives the slope-intercept form:

y = -x +5 . . . . . . . use the distributive property to eliminate parentheses

Adding x to both sides gives the standard form:

x + y = 5

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Explanation

We know the line has the required intercept and slope because we chose those values to put into the point-slope form. Conversion from one form to another made use of the rules of equality, the additive identity element (y-0=y), and the distributive property.