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3 years ago

12

Which of these are the intercepts of the graph of y = 3x – 12?

2 answers:

Lunna [17]3 years ago

7 0

Hello there! :) To find one intercept, you'll need to set the other one to 0. For instance: x intercept: y=0 y intercept: x=0 X Intercept: 0= 3x-12 Add 12 to both sides to isolate x. 0+12= 3x-12+12 12= 3x Divide both sides by 3. 12/3=3x/3 4= x intercept Y Intercept: You could plug in x as 0 and solve, but a quick way to find it in a slope-intercept equation is to look at the number at the end (without the x.) In this problem it would be -12. Hope this helps! :) Let me know if you need any additional helps.

charle [14.2K]3 years ago

5 0

Y intercept is (0,-12), the x-intercept is (4,0)

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2 years ago

2. The length of a rectangular floor is 5 feet longer than its width w. The area of the floor is 535 ft2.

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Solution given:

let width of the floor be w.

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we have

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opening bracket

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w= $\frac{-5±\sqrt{5²-4*1*-535}}{2*1}$

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