Equation:
plug the numbers into the equation:
((-15) - (-16)) / (-7) - (19)
(-15+16) / (-7-19)
1 / -28
The answer is -1/28
You can see that the function is constantly equal to 3 if x is less than -2 (included). So, we have
if [/tex] x\leq -2[/tex]
Similarly, the function is constantly 1 if x is less than -2 (excluded). So, we have
if [/tex] x> -2[/tex]
Pi goes on forever ( doesn't end )
3.14159265359........................
but it stands for 3.14
Answer: y = -1 and x = 3
Step-by-step explanation:
x=-2y+6
3x-4y = 28
There are two ways to solve this: 1) solve directly with the equations, and 2) graph the line and look for the intersection.
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Use the definition of x from the first equation and substitute it in the second:
3x-4y = 28
3(-2y+6)-4y = 28
-6y + 18 -4y = 28
-10y = 10
y = - 1
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Graph the two lines and find the value of y at the point they intersect. See the attachment.
y = -1 at x= 8
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For the second question:
y=3x-10
4x+5y=7
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4x+5y=7
4x+5(3x-10)=7
4x+15x-50=7
19x = 57
x = 3
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Answer:
-5(2x-6)+25x
-10x+30+25x
25x-10x+30
15x+30
15(x+2)
Step-by-step explanation: