1. Joe is using the quadratic formula to solve a
quadratic equation as shown. Which equation
is he solving?
x=3 V(-3) 2= 4( 2) (7)
2(2)
A. 0 = 2x2 – 3x + 7
B. 0 = 2x2 + 3x +7
C. 0 = – 3x2 + 2x + 7
D. O = 3x² + 2x + 7

part a

in a city ice cream is mostly only bought when the temperature is very high as ice cream cools down our

so we can derive the conclusion that as the temperature increases the number of ice creams sold also increases

part b

y intercept is 5

slope is 2

happy to

pls mark as brainliest

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation:

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