3 years ago

When a situation can be modeled by a linear equation, what information do you need in order to find an equation?

1 answer:

8 0

The standard equation of a line is given by:
y = mx + b
Where,
m: slope of the line
b: intersection with the y axis.
To define the linear function you need to know the value of the constants m and b
Answer:
You need in order to find an equation:
Slope of the line
Cutting point with the y axis

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Solve the following inequality. 4x-1> -9

pychu [463]

Solve inequalities the way you would solve an equation except for this rule-
If you multiply or divide a negative, the sign must be switched.

Do the inverse of everything like in an equation-
4x-1> -9
+1 +1 (Add 1)
4x>-8
/4 /4 (Divide 4)
You are not dividing a negative number from another number. So keep the sign.
x>-2
Your answer is C.

3 0

3 years ago

Mark raises guppies in an aquarium. He finds out that guppies reproduce very rapidly, and the number quadruples every month. He

Andrews [41]

For this case what we should know is that the function that best adapts to this problem is given by:
y = 2 * (4) ^ x
The graph of the function is shown for two different intervals:
A small interval of -1.5 to 0.5
A larger interval of -6.5 to 6.5.
In both intervals the exponential growth of the function is demonstrated.
Answer:
See attached image.