Lily is buying textbooks for the upcoming semester. Hardback books cost $9 and paperback books cost $4. Lily plans on spending $72 on textbooks. If hardback books are represented by x, and paperbacks are represented by y, what does the x- intercept of the function equal and represent? A 8, the number of hardback books Lily can buy if she does not buy any paperbacks.

B 8, the number of
paperback books Lily can buy if she does not buy any hardbacks.

C 18, the number of hardback books Lily can buy if she does not buy any paperbacks.

D 18, the number of
paperback books Lily can buy if she does not buy any hardbacks.

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step-by-step explanation:

i think it is c hope that

the area of a triangle is determined by the formula: base x height * 1/2

you'll need to assign a base to the triangle. based on the vertices given, the simplest base would be the line segment from (-2,1) to (2,1). the distance between any two numbers is found by just subtracting them. here, you should subtract the x values to find the distance of this side.

2 - (-2) = 4.

so the distance (aka the length of the base) is 4. the height of the triangle is the distance between the base and the highest point on the triangle which is (3,4). we should subtract the y values this time to find the height/distance.

4 - 1 = 3

so the height is 3.

base = 4

height = 3

hope this if needed hmu

if i knew id you bro,, my bad