For this case we must indicate an expression equivalent to:
For properties of powers we have to:
So, the above expression can be rewritten as:
Thus, the resulting expression is:
Answer:
Option D
Which equation represents the line that is perpendicular to y = 1/4 and passes through (-6,-9)
1 answer:
Answer:
B
Step-by-step explanation:
y = is the equation of a horizontal line parallel to the x- axis.
A line perpendicular to it will be a vertical line parallel to the y- axis with equation
x = c
where c is the value of the x- coordinates the line passes through.
The line passes through (- 6, - 9 ) with equation
x = - 6 → B
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Answer:
RoC is 0.75 (3/4); Equation is y=0.75x )
Step-by-step explanation:
You can easily spot that first column, x increases by 1 each line, while the second, y, increases by 0.75.
Rate of change is variation in y divided by the variation in x, or . Replacing with the value we found, we get that the rate of change is
or
.
To find the equation the easiest way is to go back 4 steps, at the same rate of change, in order to find what's the value for x=0. Going back by 0.75 each step starting from 4, we obtain 2.25, 1.5, 0.75, and finally 0. Our equation becomes