Slope intercept
y=mx+b
m=sllope
given
m=-5
find b
y=-5x+b
given
(2,5)
means x=2 and y=5 is true
5=-5(2)+b
5=-10+b
add 10
15=b
y=-5x+15
Answer:
Max height: 64 feet, and the socond one was higher.
Step-by-step explanation:
The max height is the y value of the vertex, because that’s when the graph peaks.
we can already very clearly see the vertex on the graph, so we don’t need to calculate it.
the max height of the second golf ball is 64 feet.
Now let’s look at the max height on the first golf ball.
we get the equation
h=-16t squared + 48t
to find the vertex of this, we can use the formula -b/2a
-48/-32 = 1.5
1.5 is the t value of this vertex.
to find the h value, we plug it in.
h = -16 (1.5) squared + 48(1.5)
h =2.25 times -16 + 72
h = -36 +72
h = 36
the first one is 36 max height, and the second is 64. The second one is bigger.
Multiply 7 1/2 by 5 1/2 and get 41 and 1/4
now divide 41 1/4 by 1/2 and get 83..
83 would be your answer(I got a little confused so this might be wrong D:)
Answer:
15
Step-by-step explanation:
-75 x-3 is 225
Square root of 225 is 15
Answer:
Step-by-step explanation:
With any two points, you can find the line between them with:
#1:
(-1, 1) -> (1, 3) 
(3, 4) -> (0, 2) 
(0, 1) -> (3, 3) 
Lines b and c are parallel because they have the same slopes
#2 is a bit easier
a: 2y = x + 12, 
b:2y - x = 5, 
c: 2y + x = 4, 
Since lines a and b have the same slope, they are parallel
#3:
(1, 3), y = 2x - 5
We have to find a line with a slope of 2 that passes through the two points
#4:
(-2, 1) , y = -4x + 3
We have to find a line with a slope of-4 that passes through the line
#5:
(-2, 3) (1, -1), 
(-3, 1) (1, 4), 
(0, 2) (3, -2) 
Since lines c and b have negative reciprocal slopes, they are perpendicular
#6:
a: y = -4x + 7
b: x = 4y + 2, 
c: -4y + x = 3, 
since lines a and c have negative reciprocal slopes, they are perpendicular
