2 years ago

Suppose a line has slope 4 and passes through the point (-2, 5). Which other point must also be on the graph?

1 answer:

6 0

(1,9) and the y-intercept would be (0,13). There's this amazing website called desmos.com it is an online graphing calculator, it will graph equations for you and all that whether it be in slope intercept form, or point intercept form, or standard intercept form.

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which expressions represents a 20% discount off the price of an item that originally cost D dollars

Charra [1.4K]

Answer:

D - (D/5)

Step-by-step explanation:

Let's imagine that D equals 100 dollars -

Well, we know that to get 20% of an amount, we need to divide the amount by five. So let's do that -

100 / 5 = 20

We now know that 20% of 100 dollars is equal to 20 dollars. We have now finished the first part. On to the second part.

We now need to take away 20% of 100 dollars off of 100 dollars - this is the price of the item after the discount.

100 - 20 = 80 dollars.