A) Y1-Y2/X1-X2
9-4/8-(-2) = 5/10= 1/2
b) 1/2x+b=y <-- plug in a point
1/2(-2)+b=4 <--plugged in (-2,4)
-1+b=4 <-- simplify/solve
b=5
c) 1/2x+5=y
Answer:
y = -2x+13
Step-by-step explanation:
2X + Y = 13
The slope intercept form is y = mx+b where m is the slope and b is the y intercept
Subtract 2x from each side
2x-2x+y = -2x+13
y = -2x+13
Answer:
6) 106 degrees
7) each 'x' angles measures 118 degrees
Step-by-step explanation:
The sum of the measures of all exterior angles is always 360 degrees.
With the number set: {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, what is the probability of choosing an even number?
lilavasa [31]
Answer:
=7
Step-by-step explanation:
sum of all no÷total no
=1+2+3+4+5+6+7+8+9+10+11+12+13 ÷ 13
=91 ÷ 13
=7
C the value of m and b doesn't affect the sign of the x-int
m is the slope of the line and b is the y-int
