<span>The Greates Common Factor (GCF) is: 2 x 2 = 4</span>
Answer:
(1, 1)
Step-by-step explanation:
We need to evaluate the given expression for each of the x-values and check if the y-value agrees with the y-value given in the pairs:
1) First point (-1,3): use x=-1 and check if y results in "3":

we obtained y=-7, so the point (-1,3) is Not on the graph of the function
2) Second point (0,2): use x=0 and check if y results in "2":

we obtained y=-2, so the point (0,2) is Not on the graph of the function
3) Third point (2,-2): use x=2 and check if y results in "-2":

we obtained y=2 (and not -2), so the point (2,-2) is Not on the graph of the function
4) Fourth point (1,1): use x=1 and check if y results in "1":

we obtained y=1 (the same y as in the given coordinate pair), so the point (1,1) IS on the graph of the function
Answers: See each part below.
1) The scale factor on Map 1 is 1cm = 2 km. It is given in the key in the bottom right corner.
2) The length of the trail would be 16 km. Since each cm is 2 km, we multiply the 8 by 2 to get a total of 16.
3) The scale factor from the first map to the second map is 0.75. To find this we can write and solve the following equation to determine the change from Map 1 to Map 2.
8k = 6
k = 0.75
4) To find the lengths of the sides of the landmark, just change the mm into cm and use the scale factor for each.
5 mm is 0.5 cm. 0.5 x 2 = 1 km
3 mm is 0.3 cm. 0.3 x 2 = 0.6 km
4 mm is 0.4 cm. 0.4 x 2 = 0.8 km
14) (9.1*10^-5)^-6=9.1*10^-9
15) (2.19*10^4)^-6=2.19*10^-2