Answer:
The terms are 2x, -90y, -40
The coefficients are 2, -90, -40
Answer: Choice B
y = (x+3)^2 - 1
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Recall that vertex form is y = a(x-h)^2 + k with the vertex being (h,k)
From the given graph, it shows that (h,k) = (-3,1) is the vertex. So we plug this pair of values into the general function above to get
y = a(x-h)^2 + k
y = 1(x-(-3))^2 + (-1)
y = (x+3)^2 - 1
which is the final answer
note: a = 1 is the case for all four answer choices, so we don't have to worry about the value of 'a'
Answer:
1800 miles
Step-by-step explanation:
Distance = rate X time. D=R x T
d=x(4.5)
d=4.5x. (First trip)
D=(x+25)(4)
D= 4x + 100. (Return trip)
Total distance
4.5x = 4x +100
X = 200
4.5(200) = 4(200) + 100
1800
