All the answers except C has a Vertical Line when graphed. It must pass the Vertical line test in order to be a function.
Vertical Line Test: If you can draw a vertical line anywhere on a graph so that it hits the graph in more than one spot, then the graph is NOT a function.
C.) can pass the test since it's a horizontal line.
Hope this helps!
Answer:
$12
Step-by-step explanation:
The mark up was 12 dollars because 32-20=12
Answer:
0.628 m (This is the correct answer but I cant find it in your options)
Step-by-step explanation:
Radius = 10 cm = 0.1 m
<u><em>Now, The circumference:</em></u>
=> Circumference = 
=> C = 2(3.14)(0.1)
=> C = 0.628 m
Answer:
Step-by-step explanation:
6x-9y=3
+x-9y=-22
first you take x-9y=-22 *-1 which will equal -x+9y=22
then you add
6x-9y=3
+-x+9y=22
----------------
5x=25
÷5 ÷5= x=5 then you plug 5 into each x spot
Y=3x+40
y=8x+20
when they are the same
3x+40=8x+20
x=4
so at 4 sessions they will be the same but the one that charges 8 per class will become more costly