We can use the points (2, 8) and (4, 12) to solve.
Slope formula: y2-y1/x2-x1
= 12-8/4-2
= 4/2
= 2
Based on the question, we need to put the equation in slope-intercept form (y = mx + b).
Let's solve for the y-intercept. (We can use the point 2, 8 to solve).
y = 2x + b
8 = 2(2) + b
8 = 4 + b
8 - 4 = 4 + b - 4
4 = b
Now, that we know what the slope and y-intercept is we can put this into the final equation.
y = 2x + 4 (third option)
Best of Luck!
Answer:
The answer is n=16b
Step-by-step explanation:
when you multiply 16*b you get the anwser of n.
1*16=16
2*16=32
3*16=48
The game cost $270 & she had $60 & is going to save $30 a week. It would take Reese 7 weeks to save enough money to buy the system.
$270-$60=$210
$210÷$30=7
7 Weeks
There are many ways to find this answer. Perhaps the simplest is to realize how acceleration relates to velocity.
a=(vf-vi)/(t2-t1)
Now for this problem we know that the ball reaches its maximum height when v=0, because this is the point when velocity is changing from positive to negative, hence it is at its highest position. And we also know that the acceleration is only cause by gravity or about -32 ft/s^2.
So in general we know that a=g=-32, vf=0, vi=64, t1=0 and t2 is the time when the ball is at its maximum height so:
a=(vf-vi)/(t2-t1) becomes
g=-vi/t2
t2=-vi/g
t=-vi/g, and in this case
t=-64/-32
t=2 seconds
In general for any quadratic of the form ax^2+bx+c=y, the x-coordinate of the vertex, which is the point of either an absolute minimum or maximum for the quadratic:
x=-b/(2a)
Which again we can see in this case is:
t=-64/(2*-16)
t=-64/-32
t=2 seconds