Answer:
y-intercept form of that equation:
y=-2/5x+b
1=-2/5(-3)+b
1=6/5+b
b=-1/5
y=-2/5x-1/5
standard form:
2/5x+y=-1/5
srry im too busy rn so i couldnt explain very well :/
Step-by-step explanation:
Standard Form: 4/10x + y = -0.2
(7,-3) and (-3,1)
m = y2 - y1/x2 - x1
m = 1 - (-3)/-3 - 7
m = 1 + 3/-10
m = -4/10
y - y1 = m(x - x1)
y - 1 = -4/10(x + 3)
y - 1 = -4/10x - 1.2
y = -4/10x - 1.2 + 1
y = -4/10x - 0.2
Standard form: Ax + By = C
4/10x + y = -0.2
a) 16, 19, 22, 25, 28, 31, 34, 37, 40
b) 1, 3, 9, 27, 81, 243, 729, 2187
a) Add 3 on every number.
b) Multiply every number by 3.
1260 is cost price and 140 is profit.
