The slope-intercept form:

m - slope
b - y-intercept
Answer:
y = -2x + 1
y = 0.6x + 1
y = x + 1
y = 1
y-intercept = 1
A+s=70, s+l=80, l+a=80
from the first s=70-a which makes the second:
70-a+l=80
-a+l=10
a=l-10 which makes the third:
l+l-10=80
2l-10=80
2l=90
l=45
So Liam weighs 45 kg.
Answer:
The area of the triangle is 10 square units.
Step-by-step explanation:
The formula for area of a triangle is A =
bh.
The problem gives us this information:
b = 4 units
h = 5 units
You can use the formula and plug the numbers into the equation to find your answer of 10 square units.