24.) y = mx + b
slope(m) = 0.25
(0,4)...x = 0 and y = 4
now we sub and find b, the y int
4 = 0.25(0) + b
4 = b
so ur equation is : y = 0.25x + 4
26.) y = mx + b
slope(m) = 3/2
(-5,1)....x = -5 and y = 1
sub and find b, the y int
1 = 3/2(-5) + b
1 = - 15/2 + b
1 + 15/2 = b
2/2 + 15/2 = b
17/2 = b
ur equation is : y = 3/2x + 17/2
28.) y = mx + b
slope(m) = 4
(0,0)...x = 0 and y = 0
time to sub
0 - 4(0) + b
0 = b
so ur equation is : y = 4x + 0.....or just y = 4x
30.) (7,1)(7,8)....notice how the x's are the exact same number....this
means that ur line is a vertical line with a slope that is undefined.
ur equation is : x = 7
32.) (-2,-3)(0,0)
slope = (0 - (-3) / (0 - (-2) = (0 + 3) /(0 + 2) = 3/2
y = mx + b
slope(m) = 3/2
(0,0)...x = 0 and y = 0
sub
0 = 3/2(0) + b
0 = b
ur equation is : y = 3/2x + 0 or just y = 3/2x
34.) (1/3,0)(0,-1/4)
slope = (-1/4 - 0) / (0 - 1/3) = (-1/4)/(-1/3) = -1/4 * -3 = 3/4
y = mx + b
slope(m) = 3/4
(0,-1/4)...x = 0 and y = -1/4
sub
-1/4 = 3/4(0) + b
-1/4 = b
so ur equation is : y = 3/4x - 1/4
Answer:
51.96 mm
Step-by-step explanation:
Perimeter of circle = 2 × pi × r
Perimeter of small circle
= 2 × 3.14 × 10/2
= 31.4 mm
half of perimeter of small circle = 31.4/2 = 15.7 mm
Perimeter of large circle
= 2 × 3.14 × (5+4)
= 2 × 3.14 × 9
= 56.52
half of perimeter of large circle = 56.52/2 = 28.26 mm
All line = half line small circle + half line large circle + (4 × 2)
All line = 15.7 + 28.26 + 8
= 51.96 mm
Answer:
Step-by-step explanation:
Que hay mas
Like a y=mx+b?
Then it would be...(i think)
y=0x-2
I got this from Calculator.Net
sorry if it is not correct....
