11. YES. Because each x-value is only used once (no duplicate x-coordinates)
12. range is the y-values. the lowest it goes is -2 (with an open dot), then it goes to +2 (with an open dot). then there is a separate line where y = 4.
Answer: (-2, 2) U [4, 4]
13. f(-1): when x = -1, y = ??? <em>(do not count the open dot!)</em>
Answer: 1
14. f(3): when x = 3, y = ??? <em>(do not count the open dot!)</em>
Answer: 4
Y = mx + b
slope(m) = 1/2
(-2,1)...x = -2 and y = 1
now we sub and solve for b, the y int
1 = 1/2(-2) + b
1 = -1 + b
1 + 1 = b
2 = b
so ur equation is : y = 1/2x + 2 <== here is one answer
y - y1 = m(x - x1)
(slope(m) = 1/2
(-2,1)...x1 = -2 and y1 = 1
now we sub
y - 1 = 1/2(x - (-2) =
y - 1 = 1/2(x + 2) <== here is another answer
17.25/7.5 = 2.3
2.3/0.5 = 4.6
Answer is 4.6 cm
4.6*0.5*7.5=17.25
Answer:
uhhhhhh try brushing them off? im not sure homie
Step-by-step explanation:
good luck