Unit 5 Test LeBlanc Use the information in the table to answer the question
Equation representing
y = 3,240x + 12,275
Van Costs
Equation representing
y=2,450% - 13,540
Car Costs
The table gives equations which represent the costs involved with buying and maintaining two used vehicles
Which one has the least total cost after 6 years?
(Substitute for x)
A. Car B van. C they cost the same

i believe it is c.y = 9x

rise over run. 9 units up over 1 unit right or 9/1

answer is 8x+24

area of vanessa's patio = length × width

given, length = (3x² + 5x + 10)

width = (x² - 3x - 1)

area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)

= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)

= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10

= 3x⁴ - 4x³ - 8x² - 35x - 10

hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)