X intercept is 2
y intercept is 4
slope is 4/2
You can always draw a straight line between two points, so 2 points are always collinear.
However, coplanar means that the two points fall within the same plane. If you’re describing two different points from two different planes, they wouldn’t be collinear, but if they were on the same, they would be collinear.
We can conclude from this information that the answer is B.
Hope this helps!
Answer:
A=408 square feet
Step-by-step explanation:
multiply the length by the width and you will have your answer, I don't know about the fraction part though, I hope my info helps though
The second graph because in slope-intercept form -x-2y=6 is y=-1/2x-3
Answer:
Sean's rocket lands 3 seconds after Kiara's rocket.
Step-by-step explanation:
Kiara: f(t)= -16t² + 80t
Sean: h(t) = -16t² + 120t + 64
Assume that both rockets launch at the same time. We need to be suspicious of Sean's rocket launch. His equation for height has "+64" at the end, whereas Kiara's has no such term. The +64 is the starting height iof Sean's rocket. So Kiara has a 64 foot disadvantage from the start. But if it is a race to the ground, then the 64 feet may be a disadvantage. [Turn the rocket upside down, in that case. :) ]
We want the time, t, at which f(t) and h(t) are both equal to 0 (ground). So we can set both equation to 0 and calculate t:
Kiara: f(t)= -16t² + 80t
0 = -16t² + 80t
Use the quadratic equation or solve by factoring. I'll factor:
0 = -16t(t - 5)
T can either be 0 or 5
We'll choose 5. Kiara's rocket lands in 5 seconds.
Sean: h(t) = -16t² + 120t + 64
0= -16t² + 120t + 64
We can also factor this equation (or solve with the quadratic equation):
0 = -8(t-8)(2t+1)
T can be 8 or -(1/2) seconds. We'll use 8 seconds. Sean's rocket lands in 8 seconds.
Sean's rocket lands 3 seconds after Kiara's rocket.