Answer: This type of sampling is Simple Random Sampling
Difference in doughnuts = 50 - 40 = 10
Difference in money = 15 + 5 = 20
20 ÷ 10 = $2
Each doughnut costs $2
<em>Check:</em>
40 x 2 + 5 = $85
50 x 2 -15 = $85
Ravi has $85 at first.
Each doughnut costs $2
Answer:
1.) 120? (Same angle just flipped around.)
2.) -2 (you flip the stuff: (3,2)(4,6) = (3,4) (2,6)
it's x1,y1, x2, y2 for number 2.. That's the formula.
Answer:
-1 moves the graph down one.
-2 flips the function over the x-axis and causes a vertical stretch by a factor of 2.
The variable is b, the coefinet is 1/3
remember
ab-ac=a(b-c)
1/3b-1/3=1/3(b-1)
there, factored
