Graph the following equation: y = -4x + 2
2 answers:
To find graph this, you need to understand the equation.
The formula is y=mx+b, m being slope and b being y-intercept.
We start out graphing by finding where the y-intercept is--and we see that our intercept is 2. Place a point on (0, 2).
Now, we need to add our slope. Start at (0, 2) and go up 4 units. Next go to the LEFT (we have a negative slope, remember?). Continue this pattern.
It should look like this once it's done:
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You can use the fact that a number raised to negative powers can be written as 1 divided by that number raised to positive number.
The value of the given expression when m = -5 and n= 3 is
Suppose we've got . then it can be rewritten as
It is because for any a except 0, and that
If base are same and there is multiplication, then there will be addition in power.
Also, know the fact that if base are same and there is division, there will be subtraction in power(subtracting since that denominator when goes up, its power gets negated(gets negative sign to the existing power)
Thus,
The given expression is
Putting m = -5 and n=3, we get:
Thus,
The value of the given expression when m = -5 and n= 3 is
Learn more about base and exponent(power) here: