Answer:
(The image is below)
Step-by-step explanation:
First, solve for
Next, find the slope and the y-intercept for the boundary line.
Slope:
y-intercept:
Now, graph:
Answer:
A
Step-by-step explanation:
Slope Intercept form is y=mx+b where m is the slope and b is the y-intercept. The line crosses through (0,3) so b=3.
To find the slope, count the units between two points and form a ratio of vertical to horizontal distance. Count from (0,3) to (1,0). It drops -3 units and moves to the right 1 unit. So m = -3/1 = -3.
The equation is y = -3x+3
Answer:
Step-by-step explanation:
3(2) + 2 = 4
6 + 2 = 4
8 is not equal to 4
Therefore (2,-2) does not equal
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
Answer:
a=1 and b=13
do you need the working out?