Answer:
What is the function of Y 7?
y=7 is a straight line with zero slope and y-intercept 7 as shown below. Hence its domain (all allowed x-values) is all real numbers, and its range (all allowed y-values) is only 7.
Step-by-step explanation:
Answer: X is less than 3
Step-by-step explanation:
4x - 7 < 5
Add 7 to both sides:
4x < 12
Divide both sides by 4:
x < 3
Answer:
Maria can drive 400 miles.
Step-by-step explanation:
30 + 0.15x = 90
0.15x = 60
x = 60/0.15
x = 400
