Based off of the formula you were given (-b/2a), ply the numbers into it
-(-20)/2(-2)
20/-4
Axis of Symmetry=5
Answer:
The graph in the attached figure
Step-by-step explanation:
Let
y-----> the cost of fuel
x-----> the number of gallons
we know that
The linear equation that represent this situation is equal to
This linear equation represent a direct variation, because the y-intercept is equal to zero ( the line passes through the origin)
using a graphing tool
see the attached figure
Answer:
64
Step-by-step explanation:
x = 5
5 + 3 = 8
8²= 8 x 8 which is 64
Start off by finding the slope of the line with the formula .
Substitute the values.
Subtract.
Simplify.
is the slope of the line.
Now, use the point-slope formula to create an equation, where is the slope and is a known point on the line.
Substitute the values.
Simplify.
Move the to create the final equation in slope-intercept form.