The answer is c because he begins at 3 points. He then loses 9. So subtract 9 from 3 and you end up with -6
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
Trapezoid and paralellogram are both quadrilaterals
the heiarchy is
quadrilaterals are 4 sided figures
quadrilaterals is split up into
A. no pairs of paralell sides
- kite
B. 1 pair of paralell sides
- trapezoid/trapezium
C. 2 pairs of parell sides (paralellograms)
-rectangles
-rhombus
-square
so you can see that they are both quadrilaterals (quad=4, lateral=sides, quadrilateral=4 sided figure)
slope basically directs how steep a line is. it’s formula is rise/run of y2-y1/x2-x1
