MrKrinkle77
04.02.2020 •
Mathematics
Can someone answer this and explain
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Ответ:
12 3 0 3 12
Step-by-step explanation:
Just plug in each value in the table in as x so when you plug in -2 that would be 3(-2)^2. -2x-2=4. 4x3=12. :)
Ответ:
Plug in the number in the x column as X and your answer will equal Y which is the number you will put in the chart.
Ответ:
Option 2 and option 4 are linear equations.
Step-by-step explanation:
We know the linear equation of the form
where m is the slope and b is the y-intercept.
The graph of y=mx+b is a straight line.We also need to check that the equation must not have any exponent.
In other words, the degree of a linear equation must be 1.
Let us check whether the given equations are linear or not.
Option 1)
Given the equation
x+1/y = 7The given equation is a non-linear equation because the exponent of the variable y is -1. i.e. y⁻¹.
Option 2)
Given the equation
7x-8y=4-2ysimplifying to write in the form y=mx+b
8y-2y = 7x-4
6y = 7x-4
y = 7/6x - 2/3
m = 7/6, b = -2/3Thus, 7x-8y=4-2y is a linear equation
Option 3)
Given the equation
2x-3xy+5y = 1Please note that the term involving xy has degree two. Thus, it is not a linear equation.
Option 4)
Given the equation
y+1/5x=3simplifying to write in the form y=mx+b
y = -1/5x+3
m = -1/5, b=3
Thus, y+1/5x=3 is a linear equation.
Thus, option 2 and option 4 are linear equations.