Answer:
52 minutes unless she was multi-tasking then it took her 29 mins to do all
Step-by-step explanation:
52 minutes
This equation is in slope-intercept form of y = mx + b form.
The m represented by the coefficient of the x term
represents the slope and b represents the y-intercept.
So our y-intercept is -4 and we can write this as the ordered pair (0, -4).
Answer:
I am sorry but what did you want the question to be?
Step-by-step explanation:
I can answer you in the comments below but I’m not sure what you’re asking
Answer:
The required equation is 
Step-by-step explanation:
The equation of the given function can be written in the form 
, where 
is the slope and 
is the y-intercept.
The given equation has a y-intercept of 
The straight line passes through 
and 
.
We calculate the slope using the formula,
We now substitute the slope and y-intercept into the above equation of the straight line to get,
This is the same as
Answer:
x = 11 or 3
Step-by-step explanation:
f(x) = (1/2)(x- 7)² – 8
to find the zeros, we equate f(x) = 0
f(x) = 0
(1/2)(x- 7)² – 8 = 0 (add 8 to both sides)
(1/2)(x- 7)² = 8 (multiply both sides by 2)
(x- 7)² = (8)(2)
(x- 7)² = 16
x-7 = ±√16
x-7 = ±4
hence,
x - 7 = 4
x = 4 + 7
x = 11
or
x - 7 = -4
x = -4 +7
x = 3
