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alina1380 [7]
3 years ago
9

4x-8y=24 find the x-intercept and y- intercept on the graph

Mathematics
2 answers:
Andreyy893 years ago
8 0
The x intercept is the value of x when y=0
the y intercept is the value of y when x=0
when y=0: 4x-0=24 => x=4
when x=0: 0-8y=24 => y=-3
so the x intercept is 4, and the y intercept is -3
sveticcg [70]3 years ago
6 0

4x-8y=24
move variables to the right side and change its sign 
4x=24+8y
divide both sides by 4 
x=6+2y 


4x-8y=24
move variable to the right and change the sign 
-8y=24-4x
divide both sides by -8
y=-3+1/2x
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Step-by-step explanation:

A: We'll start with the equation for the total charge. Juan is saying he will pay a one time fee of $30, meaning there is 30 dollars added to what ever the hourly wage is. This can be represented by the +30. Now if "h" represents the variable for which the hourly wage will be calculated, and he pays $45 dollars per hour this will be represented as 45h. <em>As an example if I pay you 2 dollars per hour using the same variable "h", this would be represented as 2h. So if you worked for two hours you would get 4 dollars, this is proven by the fact the 2(2) (remeber im replacing the "h" with the hours you worked) obviously 2 times 2 is 4 proving my point. </em>This information will give you the equation you see above.

B: Onto solving for how much Juan will pay. Now you say youre supposed to have 9 answer but this can't be true. All you need to do is plug the hours given into "h" and solve the equation. It should look something like:

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Im using a decimal because it should be clear 1/2=0.5

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45x6.5 always go with PEMDAS, we are multiplying first. Then add 292.5 plus 30

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