The weight of 120 books is 36kg, find the weight per book
1 answer:
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Answer:
C
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m =
with (x₁, y₁ ) = (- 8, - 42 ) and (x₂, y₂ ) = (- 3, - 17 ) ← 2 ordered pairs from the table
m = =
=
= 5
The line crosses the y- intercept at (0, - 2 ) , then
y = 5x - 2 → C