Answer:
y = 9x-8
Step-by-step explanation:
Find y values for x= -3 and x = 3. These will come out to -35 and 19 respectively.
Plug these numbers into the rise/run equation for slope m (y2-y1)/ (x2-x1). Plugging values in and simplifying you will get 54/6, which reduces to 9. This is your m value.
Apply your m value to x = 3 going backwards (x = 2 gives a y value of 10, 1 gives 1, and 0 gives -8). This will give you a y intercept of -8. This is your b value.
Plug the slope and y intercept into the mx + b equation. This will give you y = 9x-8.
There you go!
4x+9=17
4x-9=-9
4x=8
4x/4=8/4
X=2
Answer:
There are no answers.
Step-by-step explanation:
So, the equation is 2x + 6 = 2(x+5)
Let's solve your equation step-by-step.
2x+6=2(x+5)
Step 1: Simplify both sides of the equation.
2x+6=2(x+5)
2x+6=(2)(x)+(2)(5)(Distribute)
2x+6=2x+10
Step 2: Subtract 2x from both sides.
2x+6−2x=2x+10−2x
6=10
Step 3: Subtract 6 from both sides.
6−6=10−6
0=4
Answer:
Graph D
Step-by-step explanation:
(h)t = -16t^2 + 80
At time t = 0 the screwdriver is at 0+80 =80 ft
As time increases the height will decrease so we can eliminate graph B
We know this is a downward parabola by the - in front of the t^2 so we can eliminate graph A
We need to find where it meets the x axis
0 = -16t^2 + 80
-80 = -16t^2
5 = t^2
t = sqrt(5)
t =2.23
This is Graph D