Answer:
(1, 0)
Step-by-step explanation:
x = -b / 2a
x = 2 / 2(1)
x = 2 / 2
x = 1
y = x^2 - 2x + 1
y = (1)^2 - 2(1) + 1
y = 1 - 2 + 1
y = -1 + 1
y = 0
vértice: (1, 0)
Answer:
y = -0.4 + c
Step-by-step explanation:
y = mx + c (original form)
m ⊥ - 1/m
2.5 = 25/10
25/10 ⊥ -10/25
-10/25 = -0.4
y = -0.4x + c
Answer:
176
Step-by-step explanation:
The formula for the number of degrees of an external polygon is
360/n where n is the number of sides
octogon has 8 sides
360/8=45
answer is 45 degrees
The point slope formula is y - y1 = m(x - x1)
the value x1 is the x coordinate of a point
the value y1 is the y coordinate of a point
the value m is the slope, which is 3
therefore, x1 = -2 & y1 = 1
Then, all you do is plug in the points:
y - 1 = 3(x + 2)
NOTE: It is 3(x + 2) instead of 3(x - 2) because the formula is (x - x1). If you plug x1 in, it is (x - (-2)). 2 negatives cancel out to be a positive, so it is (x + 2)
