I need help on this math question pls

An easy way to start a graph is by finding two points for the slope, and then a single point for the intercepts.

The two points I'll use are (0, 80) and (1, 120) (Keep in mind, you can use any two points, they'll all give you the rame ratio).

Use the slope equation:

Now that we have our slope, we can use one of the points (I'll just use (0, 80)) to create the equation.

So your final equation is y=40x+80.

* To solve for that second question, just plug in 10 for x and you should get the cost!

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq

a; x = 0.5

step-by-step explanation:

-10x = -5

x = 0.5