Answer:
C
Step-by-step explanation:
Total sales:
Brian:
July, 38.9; August, 35.9, September, 40.5; October, 36.1
= $151,400
Laura:
July, 41.1; August, 36.8, September, 39.2; October, 43.3
= $160,400
Miguel:
July, 40.1; August, 44.1, September, 43.3; October, 39.7
= $167,200
Wanda:
July, 41.2; August, 36.5, September, 43.2; October, 39.3
= $160,200
Ranking:
1) Miguel (5 pm)
2) Laura (8 am)
3) Wanda (2 pm)
4) Brian (11 am)
Answer:
f⁻¹(x) = (x - 1)/8
Or
f⁻¹(x) = 1/8 x - 1/8
Step-by-step explanation:
To find the inverse of a function, switch the "x" and "y" variables, then isolate "y".
Remember <u>"f(x)" is the same thing as "y"</u>. Change from function notation to "y".
f(x) = 8x + 1
y = 8x + 1
<u>Switch the "x" and "y" variables</u>
x = 8y + 1
<u>Isolate "y"</u>. Move the "y" variable to the left for standard formatting
8y + 1 = x
8y + 1 - 1 = x - 1 Subtract 1 from both sides
8y = x - 1
Divide both sides by 8 and simplify
Inverse equation
Slope-intercept form
<u>Use function notation</u>, change "y"
Simplified
Slope-intercept form
From lowest to highest:
9.06, 9.08, 9.1, 9.15
3 lowest numbers are 9.06, 9.08, and 9.1