Answer:
Slope: 5
y-intercept: -7
Step-by-step explanation:
Slope-intercept form is written as '
', 
being any point on the line, 
its slope, and 
the line's y-intercept.
In this equation, 
, and 
.
Answer:
60
Step-by-step explanation:
Answer:
x = -2
y = -1
Step-by-step explanation:
y - 2x = 3 and y - x = 1
Subtract the second equation from the first
y - 2x = 3
- ( y - x = 1)
––––––––––
-x = 2
Multiply both sides by -1
x = -2
Sustitute x = -2 into the first equation
y - 2(-2) = 3
y + 4 = 3
Subtract 4 from both sides
y = -1
Answer:
the vertex is at (2, 5) and the axis of symmetry is x = 2
Step-by-step explanation:
A word to the wise: Please use " ^ " to indicate exponentiation. And so we have:
y= -2x^2+8x-3
The x-coordinate of the vertex and the equation of the axis of symmetry is determined by the equation
b -8
x = ------- which here is x = ----------- = 2
2a 2(-2)
Then the y-coordinate of the vertex is f(2) = -2(-2)^2 + 8(2) - 3 = 8 - 3 = 5
and so the vertex is at (2, 5) and the axis of symmetry is x = 2
