Step-by-step explanation:
The formula is<em> y=mx+b</em>, with <em>m</em> representing the slope, <em>x</em> representing the <em>x </em>coordinate, and<em> b</em> representing the y-intercept. Since -⅓ is the slope, that means that the equation starts off as y=-⅓. We know that the y-intercept is where the line meets the y-axis, so the y-intercept is 9. Since 9 (the y-intercept) is being added, that means the equation is y=-⅓+9.
Answer:
y=-⅓+9
Answer:
y = 1/2
Step-by-step explanation:
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Answer:
For 12, it is 2,2,3
For 42, it is 2,3,7
Step-by-step explanation:
Answer:
72.5m/hr
Step-by-step explanation:
Divide 870 by 12 to represent how many miles David drove in 1 hour.

David drove 72.5 miles per hour.
For a , C= 18.85
for b , C= 21.99
for 1 , C= 75.4
for 2 , C= 87.96