Concept explainers
For Exercises 1-4, choose the correct letter.
An architect makes a drawing of a parabolic-shaped arch with a linear support intersecting it in two places. The parabola can be modelled by the function
The line intersects the parabola when
What is the equation of the line?
F.
G.
H.
I.
To find the equation of the line.
Answer to Problem 4STP
The answer matched with the
Explanation of Solution
Given information:
The equation is
The line intersects the parabola when
The given answer
The solution can be obtained as
Solve for the corresponding y value
So, the point of intersection are
Find the slope
The equation of line are
Put the value of
Hence,
The answer matched with the
Chapter 9 Solutions
High School Math 2012 Common-core Algebra 1 Practice And Problem Solvingworkbook Grade 8/9
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