Flat doesn't change
2 changes with x
y=2x+5
yint is 5
to graph
start at center and go 5 up, that is y intercept
go 1 right and 2 up, that is another point
y=2(2)+5
y=4+5
y=9
cost $9 to rent for 2 hours
Step-by-step explanation:
in 2nd exp. this is because by using the formula of a2-b2
Answer:
9.1
Step-by-step explanation:
he needs one box
he needs 4 individuals 1.39×4=5.56
6 x.59=3.54
5.56+3.54=9.1
Answer:
y=3x
Step-by-step explanation:
Replace the second equation y=3x+4 into the first one:
2(3x+4)+5x=30
Now solve for x:
6x+8+5x=30
11x=30-8
11x=22
x=22/11
x=2
Finally, replace x=2 into y=3x+4
y=3*2+4
y=6+4 = 10
So the anwer is x=2, y=10
