Answer and Step-by-step explanation: Suppose remaining credit is y and time in minutes is x. To determine a value of y corresponding to a value of x, first find the equation for the function.
Since the function is linear, the equation is of the form: y = mx + b. To determine it:
1) Find slope, or inclination, of the line:
slope (m) = 
where x's and y's are points of the function.
2) Determine the y-intercept, or b: Use a point of the function, replace them at the equation, y = mx + b, and find b.
3) The equation will be: y = mx + b
With the equation, replace x for the minutes the question is asking and calculate to find the remaining credit.
Th result will be a pair (x,y)
Answer:
Parallelogram
Step-by-step explanation:
To find the minimum value of function 1, we need to find the vertex. The formula for the x-coordinate of the vertex is -b/2a, which is -1 in this equation. However, to find minimum and maximum values, we need to look at the y-coordinate. f(-1) is 4, which we know is a minimum (rather than a maximum), because the leading coefficient is positive -- so the parabola opens upwards. So, the minimum value of f(x) is 4, and the coordinate is (-1, 4).
From the table, the minimum value of g(x) is 3, and the coordinate is (0, 3).
Therefore, function 2 has the lowest minimum value, with coordinates (0, 3).
Answer:
A
Step-by-step explanation:
A is the answer to your question because if you expand with the roots you get the answer
Answer:
24.2 centimeters
Step-by-step explanation:
for height = f(time)
let x be the value of the height at 28hours
solving linearly
(28 - 15)/(32 - 15) = (x - 19)/(12.2 - 19)
solving we have
13/17 = (x - 19)/6.8
0.7647 = (x - 19)/6.8
cross multiplying,
x - 19 = 5.2
x = 5.2 + 19 = 24.2centimetres
