Answer:
Domain: {1, 2, 3, 4}
Step-by-step explanation:
The domain of the graph (input values) is the number of pizzas which are plotted on the x-axis while the range (output values) is the cost of pizza, plotted on the y-axis (vertical axis)
The domain therefore would consists of each x-coordinate that represent each point on the graph, which are {1, 2, 3, 4}
Answer:
Option A:
y = 3*(x - 5)^2 - 4
Step-by-step explanation:
For a quadratic equation:
y = a*x^2 + b*x + c
with the vertex (h, k), we can rewrite the function as:
such that:
h = -b/2*a
y = a*(x - h)^2 + k
Here we have the function:
y = 3*x^2 - 30*x + 71
the x-value of the vertex will be:
h = -(-30)/(2*3) = 30/6 = 5
And k is given by:
k = y(5) = 3*(5)^2 - 30*5 + 71 = -4
Then the vertex is:
(5, - 4)
And we can rewrite the equation in the vertex form as:
y = 3*(x - 5)^2 + (-4)
y = 3*(x - 5)^2 - 4
Then the correct option is A.
Answer:
f(x) has y-intercept at (0,-1). g(x) is unknown since inputs (x) are missing int he table.
Step-by-step explanation:
f(x) has the equation y = 4x - 1 which is y = mx + b. This form has the y-intercept directly in the equation as b. So b = -1.
g(x) has no input values in the table. The y -intercept is located where x = 0. Since there are no input values, the y-intercept can not be found without more information.
Answer:
231 yd²
Step-by-step explanation:
h·b=A
17.5 · 13.2 = 231 yd²
