Answer:
rate of change = -0.32
Step-by-step explanation:
Rate of change = slope,m
Leis car averages 14.5 miles per gallon while romans car averages 28.5 miles per gsllon.Use estimation to find how many times as
1 answer:
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Answer:
C.
Step-by-step explanation:
First, find the slope, m, of the line that passes through the two given points.
Slope =
Next, determine the y-intercept, b.
The y-intercept is where the line intercepts the y-axis. The line intercepts the y-axis at y = 2. Therefore, b = 2.
Now, to get an equation of the line, substitute m = -1, and b = 2 in .
✅The equation would be:
Answer:
see explanation
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
Here (h, k) = (3, 1), hence
y = a(x - 3)² + 1
To find a substitute (- 2, - 4) into the equation
- 4 = a(- 2 - 3)² + 1
- 4 = 25a + 1 ( subtract 1 from both sides )
25a = - 5 ( divide both sides by 25 )
a = - = -
y = - (x - 3)² + 1 ← in vertex form