3 years ago

What is the equation for the line that has a slope of -2 and a y-intercept of (0,9)?

Mathematics

1 answer:

VMariaS [17]3 years ago

7 0

Answer:

y=-2x+9

Step-by-step explanation:

You might be interested in

The equation y=1/9x relates proportional quatities x and y. what is the value of x when y is 4?

drek231 [11]

An boy got no head

Step-by-step explanation:

5 0

2 years ago

A circle has an area of 153.86 units2 and a circumference of 43.96 units. If the radius is 7 units, what can be said about the r

dusya [7]

Step-by-step explanation:

$\text{Circumference:}\\\\C=2\pi r\\\\\text{Area:}\\\\A=\pi r^2\\\\\dfrac{A}{C}=\dfrac{\pi r^2}{2\pi r}\qquad\text{cancel}\ \pi\ \text{and}\ r\\\\\dfrac{A}{C}=\dfrac{r}{2}\\\\\bold{The\ number\ of\ areas\ of\ a\ circle\ is}\ \dfrac{r}{2}\ \bold{larger\ than\ its\ circumference}.$

$\text{For a given area and circumference}:\\\\A=153.86,\ C=43.96,\ r=7\\\\\dfrac{A}{C}=\dfrac{153.86}{43.96}=3.5=\dfrac{7}{2}=\dfrac{r}{2}\\\\\dfrac{A}{C}=\dfrac{r}{2}$