Answer:
2/7x + 8/7
Step-by-step explanation:
f(x) = -4 + 7/2x
y = -4+7/2x
Exchange x and y
x = -4 +7/2y
Solve for y
Add 4 to each side
x+4 = -4+4 +7/2y
x+4 = 7/2y
Multiply each side by 2/7
2/7(x+4) = 2/7 * 7/2y
2/7(x+4) = y
2/7x + 8/7
Answer: 1-20 can be made with four 2's when you use a power on the 2's like this 2 to the power of 4 + (2 to the power of 2+2 to the power of 2)= 20
Step-by-step explanation:
Answer:
x ≤ -27
Step-by-step explanation:
-6(x + 7) ≥ 120
multiply -6 by x and by 7 so...
-6x - 42 ≥ 120
then you will add 42 to both sides...
-6x - 42 ≥ 120
+42 +42
-6x ≥ 162
then divide -6 by both sides (Hint: flip the sign since you are dividing a negative)
>>> x ≤ -27 <<<
Answer:
2 times -4
Step-by-step explanation:
the line jumps backwards 4 times by increments of 2