Answer:
Answer is 2a + 8 because 2 times a is 2a and 2 times 4 is 8
All you have to is divide two consecutive terms to calculate the common ratio
1/4 divided by 5/12 = 1/4 * 12/5 = 12/20 = 3/5
Answer:
y = 7/5x - 14 3/5
Step-by-step explanation:
Point-slope form:
y + 9 = 7/5(x - 4)
y + 9 = 7/5x - 28/5
y = 7/5x - 14 3/5
Answer:
9.7 units
Step-by-step explanation:

3x + 4y = 18......(2,3)
3(2) + 4(3) = 18
6 + 12 = 18
18 = 18...correct
2x - 2y = 2....(2,3)
2(2) - 2(3) = 2
4 - 6 = 2
-2 = 2...incorrect
when (2,3) is subbed into equation 1, it is true
when (2,3) is subbed into the second equation, it is false
the ordered pair (2,3) is not a solution to the system of linear equations