6:35pm, because 35 minutes before 7:10 pm is 6:35pm :)
9514 1404 393
Answer:
y = 5x
Step-by-step explanation:
The point (0, 0) tells you the line goes through the origin, so represents a proportional relationship. The slope is simply the ratio of y to x, or 5/1 = 5.
The equation of the line is ...
y = mx + b . . . . . . line with slope m and y-intercept b
y = 5x . . . . . . . . . . line with slope 5 and y-intercept of 0 (the origin)
D. works because if you work it out that means 2n=140 and then divide by 2 which means n=70 and the other number is 71
Equation A find “m” and “b”:
“B” is the y-intercept when x = 0. They give this in the table as “-2” so b = -2
Find slope (m) = (-8)-(-2)/(-2)-0 = 3
Equation A is y = 3x - 2 (y = mx + b)
Equation B find “m” and “b”:
Find m = (-9)-(-5)/(-3)-(-1) = 2
To find be, plug in m, x, and y from ANY coordinates in table b into y = mx + b:
-9 = 2(-3) + b
-9 = -6 + b
b = -3
Equation b is y = 2x -3
Use substitution and substitute all of equation “b” for “y” in equation a:
2x - 3 = 3x - 2
Algebra: x = -1
Plug back into equation a:
y = 3(-1) -2
y = -5
x = -1
(-1, -5) final answer (B)
