Question

one more question that needs checking @whpalmer4

Answer 1

i am pretty sure i am right @whpalmer4 , it is very similar to the question we did the first time

Answer 2

the first answer is just the slope, and the second is me finding the slope
y2-y1/x2-x1

Answer 3

\[\frac{ 310-180 }{ 4-2 }\]

Answer 4

= 65

Answer 5

right?

Answer 6

The first question asks you to find the slope of the plumber's wages, right?

\[y=55x+85\]is the equation for the plumber's wages.

Compare with slope-intercept form:
\[y = mx+b\]where \(m\) is the slope
$55 is the plumber's hourly rate, and he charges $85 for showing up.

Answer 7

so:

Answer 8

Second one can be computed the way you did, that gets the correct answer. You can also look at the table and see that the independent variable (the number of hours worked) goes from 1 to 2 as the wages go from 115 to 180, so the additional wages for 1 hour of work are 180-115 = 65.

Knowing that the slope is 65, you can work out the entire formula for the electrician's wages:

\[y = mx + b\]\[y = 65x + b\]but we now can plug in any data point from the table and find \(b\):
\[115 = 65(1) + b]\[115 = 65 + b\]\[b = 50\]
So the formula for the electrician is
\[y = 65x + 50\]He charges $65/hour, and a $50 fee for showing up.

Answer 9

nvm it is still 65

Answer 10

sorry, fat fingered a bit of my formatting in that last post, but I think you can figure it out.

Answer 11

@whpalmer4 tell me this:

Answer 12

is thsi wrong that is all i need to know

Answer 13

i dont have a lot of time right now so is it?

Answer 14

it was right i got 100%

Answer 15

here is medal!

Answer 16

hope u get that starbucks!