Answer:

Step-by-step explanation:
To find the slope of a line which is perpendicular to another line, you need to find the opposite reciprocal of the first line's slope.
To find the opposite, flip the slope's sign. Your original slope is
, so your opposite slope is positive
.
To find the reciprocal, flip the fraction. This changes your slope from
to
, which may be written as just 7.
Therefore, your slope is 7.
To find your b term (your y-intercept) given that your x-intercept is -7, you can make use of point-slope form.

<em>(m=slope)</em>
If your x-intercept is -7, then the point at which your line intersects the x-axis is (-7, 0).

A scatter plot is generally used when displaying data from two variables that may or may not be directly related, and when neither of the variables is under the direct control of the researcher. The primary function is to illustrate a correlation.
Answer:
B. $11
Step-by-step explanation:
yes, the most simplified version would be 40/9
in decimal form this is 4.444444
Answer:
(4/x)-1
Step-by-step explanation:
The quotient of 4 and the number x means we are dividing 4 by x, so we get 4/x
Then we have the 'one less than' part, meaning we subtract one from (4/x), so we get (4/x)-1
Hope this helps