PLS HELP ME I WILL MARK YOU AS BRAINLIEST ITS DUE BY 12am
1 answer:
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The average rate of change from an interval from 
to 
is the change in the value of the function divided by the change in x.
Let's find the values of
and 
Average rate of change
Your answer is 7. I hope this helps! :)
Let's find the values of
Average rate of change
Your answer is 7. I hope this helps! :)
Answer:
The coefficient of the squared term is 1/25.
Step-by-step explanation:
We are given that the vertex of a parabola is at (2, -4). We also know that <em>y</em> = -3 when <em>x</em> = -3.
And we want to determine the coefficient of the squared term of the equation.
Since we are given the vertex, we can use the vertex form of the quadratic:
Where (<em>h, k</em>) is the vertex and <em>a</em> is the leading coefficient. The leading coefficient is also the coefficient of the squared term, so we simply need to find the value of <em>a</em>.
Since the vertex is at (2, -4), <em>h</em> = 2 and <em>k</em> = -4. Substitute:
<em>y</em> = -3 when <em>x</em> = -3. Solve for <em>a</em>:
Simplify:
Therefore, our function in vertex form is:
Hence, the coefficient of the squared term is 1/25.
X - the cost of the skirt
y - the cost of the blouse
The ratio of the cost of the skirt to the cost of the blouse is 8:5.
The skirt costs $24 more than the blouse.
Set (8/5)y and y+24 equal to each other:
The cost of the blouse is $40.
y - the cost of the blouse
The ratio of the cost of the skirt to the cost of the blouse is 8:5.
The skirt costs $24 more than the blouse.
Set (8/5)y and y+24 equal to each other:
The cost of the blouse is $40.