Therefore, slope of line DC = slope of line AC = -0.4.
<span>A quadratic function is one of the form f(x) = ax^2 + bx + c, where a, b, and c are numbers with a not equal to zero.
In the given question, the only function that satisfies the condition of a quadratic function is f(x) = x^2 + 2x - 5 and thus is the correct answer to the question.</span>
Answer:
7.4%
Step-by-step explanation:
find percentage of the tax
(total cost=$388.80)
28.80 out of 388.80
=28.80*100/388.8= 7.4%
Equation of a line in slope-intercept form is y = mx + b
If it has a slope of 1/2, you set m = 1/2. If it has a y-int at the origin, you set b = 0
Put it all together:
y = 1/2x + 0
or
y = 1/2x
