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labwork [276]
3 years ago
13

What is the x-intercepts of the graph of y = 12x-5x-2

Mathematics
2 answers:
hammer [34]3 years ago
8 0
Y = 12x - 5x - 2

first simplify the equation by subtracting like terms (in this case):

12x - 5x = 7x

y = 7x - 2

Since you are finding the x, you must isolate the x. Do the opposite of PEMDAS.(Note: because there is a equal sign, what you do to one side, you do to the other)

y = 7x - 2

y (+2) = 7x - 2 (+2)
y + 2 = 7x
(y + 2)/7 = 7x/7

x = (y + 2)/7


x = (y + 2)/7 is your answer

hope this helps
PilotLPTM [1.2K]3 years ago
6 0
X intercept = when the graph cuts the x-axis = when y = 0


y = 12x^2 -5x -2

when y = 0
12x^2 -5x -2 = 0
(3x - 2) (4x + 1) = 0
x = 2/3 or x = 1/4

So the x-intercept are (2/3, 0) and (1/4, 0)

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Suppose y varies inversely as x, and y=25 when x=3. Find x when y=15
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3 0
3 years ago
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Step-by-step explanation:

divide the opposite sides, by the length of the hypotenuse. To get the cosine, divide the length of the adjacent side,by the length of the hypotenuse.

7 0
3 years ago
<img src="https://tex.z-dn.net/?f=4x%5E%7B2%7D%20%2B28x%2B49%3D0" id="TexFormula1" title="4x^{2} +28x+49=0" alt="4x^{2} +28x+49=
Harman [31]

Answer:

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Step-by-step explanation:

 4x^2 + 28x + 49 = 0

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x = -7/2 multiplicity 2.

6 0
3 years ago
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