Write an equation for the line described. Give your answer in slope-intercept form.m = 8, through (2, -7)
A. y = 8x + 22
B. y = 9x + 24
C. y = 8x - 21
D. y = 8x - 23
Answer: D
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Decide whether or not the ordered pair is a solution of the system.(-5, 4)3x = -11 - y4x = -8 - 3y
A. No B. Yes
Solve. If necessary, round to the nearest tenth.A flagpole casts a shadow of 34 feet. Nearby, a 7-foot tree casts a shadow of 5 feet. What is the height of the flagpole?
A. 24.3 ft B. 1,190 ft C. 1 ft D. 47.6 ft
Solve the equation by the method of your choice. Simplify irrational solutions, if possible.x2 + 18x + 66 = 0
A. {-18 ± 
}
B. {-9 ± 
}
C. {9 ± 
}
D. {9 ± 
}
Solve. If necessary, round percents to the nearest tenth, dollar amounts to the nearest cent, and all other numbers to the nearest whole.A $220.00 dress is on sale for 10% off. Find the discount and the sale price.
A. discount: $2.20; sale price: $198.00 B. discount: $22.00; sale price: $2,178.00 C. discount: $22.00; sale price: $198.00 D. discount: $2.20; sale price: $2,178.00