Find the equation of a line passing through the points (2,1) and (5,10) in slope intercept form.
1 answer:
Answer:
y=3x-5
Step-by-step explanation:
Slope intercept form is y=mx+b
m represents slope
b represents y-intercept
In the picture, 3 replaces m, so 3 is the slope of the line.
When (2,1) and (5,10) are graphed, the line intercepts -5 on the y axis.
-5 is the y-intercept.
So, (2,1) and (5,10) in slope-intercept form is
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Answer:
C. 647 square units
Step-by-step explanation:
To find the shaded area, subtract the area of the unshaded square from the area of the octagon.
<u>Area of the octagon</u>
where:
- n = number of sides
- l = length of one side
- a = apothem
Given:
- n = 8
- l = 13
- a = 15.69
Substitute the given values into the formula and solve for A:
<u>Area of the square</u>
<u>Area of the shaded region</u>
= area of the octagon - area of the square
= 815.88 - 169
= 646.88
= 647 square units (nearest square unit)