Answer:
53
Step-by-step explanation:
f(x) = x^2 – (x + 3)
Let x = 8
f(8) = 8^2 – (8 + 3)
=64 - (11)
=53
Answer:
y=-4
Step-by-step explanation:
2y-18=-26
2y=-26+18
=-8
y=-8÷2
=-4
Answer:25 months
Step-by-step explanation: Let's make the equations first,
Plan A: 70x Plan B: 50x+500
Now we make it into an equivalent equation:
70x=50x+500
Then we solve:
70x=50x+500
-50x -50x
20x=500
÷20 ÷20
x=25
To check if it's correct, we just plug it in:
70(25)=50(25)+500
1750=1750
I am mostly sure it's b. Good luck! :3
Y2 - y1 over x2 - x1 = slope
2 - (-1) = 3
-1 - 2 = -3
the slope is 3/-3, or -1
y = -x
2 = 1 + 1
The equation of the line is y = -x + 1
