Answer:
<em>f(2)=-2</em>
Step-by-step explanation:
<u>Values of a function from a graph</u>
The graph of a function is usually a drawn line that joins a number of points that correspond to the ordered pairs (x,y), where x is a given value, and y is the value calculated through the rule of the function, usually a formula or equation.
If we want to know the value for a specific value of x, we find the corresponding x-coordinate, draw an imaginary vertical line until we meet the graph. The value of y at that point is the required value of the function.
For example, for x=0 the graph crosses the y-axis at y=2, thus the ordered pair is (0,2), and f(0)=2.
For x=2, the function has a value of y=-2, thus:
f(2)=-2
Answer:
I'm not guaranteeing this is the answer but 73.39% or 74%
Answer:
They are both correct in their procedure. Nicole solved for one variable in the equation, while Jared solved for the other variable.
Step-by-step explanation:
Notice that if you have the equation y = x + 10 in a system of equations, the most immediate thing to do is to try to use the fact that "y" is the same as "x + 10" to substitute in the other equation of the system.
But, this same equation can also be used to solve for the other variable "y", by simply subtracting 10 from both sides, which gives:
y - 10 = x
So now, one can use "y-10" to substitute for x in the other equation.
Both procedures are correct, and simply will lead to finding a different variable first when solving the equation.
