Answer:
- slope: 1
- equation: y = x +3
Step-by-step explanation:
The slope of the line between two points can be found using the slope formula:
m = (y2 -y1)/(x2 -x1)
m = (2 -0)/(-1 -(-3)) = 2/2
m = 1 . . . . . the slope of the line is 1
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The value of the y-intercept can be found by solving the slope-intercept equation for b.
y = mx +b
b = y -mx
b = (0) -(1)(-3) = 3 . . . . . using point (x, y) = (-3, 0)
The equation of the line with slope 1 and y-intercept 3 can be written as ...
y = x +3
Answer:
the total cost will be $14
Step-by-step explanation:
a) 0.05p + 0.45f
b) 0.05(100) + 0.45(20)=
5+9
14
Answer:
0
Step-by-step explanation:
21(3) +2(7) - 11(7) because the absolute value of -11 is 11
63+14-77
=0
Answer:
Step-by-step explanation:
12) Decrease in miles = 22,250 - 14,500 = 7750 miles
= 34.83%
13) Decrease in speed = 40 - 25 = 15 mph
= 37.5%
Answer:
=1.5
Step-by-step explanation:
