A bridge 48m tall.a scale model of the bridge 37cm long and 12cm tall .how long is the actual bridge .
1 answer:
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Answer:
The initial value is 29.5
Step-by-step explanation:
we know that
The linear equation in slope intercept form is equal to
where
m is the slope
b is the y-intercept ( also called initial value)
we have the points
(3,42.25) and (5,50.75)
Find the slope m
The formula to calculate the slope between two points is equal to
substitute the values
substitute in the equation
<em>Find the value of b</em>
with the point (3,42.25) ( or the other given point)
substitute the value of x and the value of y in the equation and solve for b
substitute
The linear equation is
The initial value is the y-intercept (value of y when the value of x is equal to zero)
For x=0
Therefore
The initial value is 29.5