A. No it is not linear because there are points that have the same y
b. yes it is linear because the x is consistently going up by 1 and y is consistently going down by 3
Answer:
Step-by-step explanation:
step 1
In the isosceles right triangle PQT
PQ=PT ----> because is an isosceles triangle
Applying the Pythagoras Theorem
we have
substitute the values
step 2
In the square QRST
step 3
In the right triangle RSU
Applying the Pythagoras Theorem
we have
substitute the values and solve for SU
A.
the starting point is where t=0
d(0)=-16(0)^2+96(0)+112
D(0)=112
started from 112 feet
b. max height is vertex
for
y=ax^2+bx+c
the x value of the vertex is -b/2a
so
D(t)=-16t^2+96t+112
t value of vertex is -96/(2*-16)=3
it reaches after 3 seconds
C. simpliy evaluate D(t) for t=3
D(3)=-16(3)^2+96(3)+112
D(3)=-16(9)+288+112
D(3)=-144+400
D(3)=256
max height is 256ft
10y + 20 is an equivalent expression