Answer:
1/2 seconds
Step-by-step explanation:
2 over 1
2
1
Y = 3x + 2
Slope is 3 and y intercept is 2 (given in table with (0,2))
Y = 3
x = -4
(2x + y = -5)3 = 6x + 3y = -15 = 6x + 3y = -15
(3x + 5y = 3)2 = -(6x + 10y = 6) = -6x - 10y = -6
-7y = -21 : y = 3
(then we substitute y into equation #1)
2x + 3 = -5
2x = -8
x = -4
What you need to do is change the equation to the form y=mx+b.
So,
Add 10x to both sides to move 10x from the right side.
Divide the 5 from 5y to isolate the variable.
Now, the equation is in y=mx+b, and the slope of the line is m, so the slope of this equation is 2.
240/4=60 so 60x5=300. Traveled 300 miles in 5 hours