Question

Please i need this turned in by 2:00 om so dont answer if you dont know<3

Consider the equation 1.5x+4.5y=18.

1. If we graph the equation, what is the slope of the graph?

2. Where does the graph intersect the y-axis?

3. Where does it intersect the x-axis?

Answer 1

slope = -1/3

y-intercept = 4

x-intercept = 12

Explanation:

slope intercept form is

y = mx + b

m is the slope and b is the y-intercept

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rearrange into slope intercept form

1.5x + 4.5y = 18

subtract 1.5x from both sides

4.5y = -1.5x + 18

Divide both sides by 4.5

y = (-1/3)x + 4

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Slope

m = -1/3

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y-intecept

b = 4

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x intercept

this is where y = 0

0= (-1/3)x + 4

add (1/3)x to both sides

(1/3)x = 4

Multiply both sides by 3

x = 12