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3 years ago

Which of the following is a graph of the line y=−4x ?

Mathematics

1 answer:

sveta [45]3 years ago

8 0

Answer: D

Step-by-step explanation:

y= -4x

y = mx + b

m = -4

If you start on (0, 0), you'd go down 4 and to the right one, so then you'd have another point at (1, -4).

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Solve, using the substitution method.

Phoenix [80]

14-4x=2y
divide both sides by 2
7-2x=y
subsitute 7-2x for y
7-2x+2x=7
add like terms
7=7
true
therefor these 2 equations are the same and there are an infinite number of equations

answer is C

5 0

3 years ago

Read 2 more answers

Let x represent the amount of frozen yogurt (in hundreds of gallons) sold by the G&T restaurant on any day during the summer

musickatia [10]

Answer:

a) The probability of selling less than 100 gallons (x≤1) is P=0.16.

b) The mean number of gallons is M=80 gallons.

Step-by-step explanation:

The probability of selling x, in hundred of gallons, on any day during the summer is y(x)=0.32x, in a range for x from [0;2.5].

The probability of selling less than 100 gallons (x≤1) is then:

$P(x\leq1)=\int_0^{100}0.32x\cdot dx\\\\P(x\leq1)=0.16(x_b^2-x_a^2)\\\\P(x\leq1)=0.16(1^2-0^2)=0.16$

The mean number of gallons can be calculated as:

$M=\int_0^{2.5}(y(x)/x)\cdot dx=\int_0^{2.5}(0.32)\cdot dx\\\\M=0.32(x_b-x_a)=0.32(2.5-0)=0.32*2.5=0.8$

3 0

3 years ago

A concave octagon B convex quadrilateral C concave quadrilateral D convex octagon

balu736 [363]

Answer: concave

Step-by-step explanation:

4 0

3 years ago

Brainliest if correct

Darya [45]

Answer:

Multiply 4 x 2 and the add the P in the front like this:

P = 8

HOPE IT HELPS, BE SAFE :3

4 0

2 years ago

Read 2 more answers

Plz Help ASAP plz help me with #2. Plz I'm begging u!!!!!!

Sergeu [11.5K]

$230 divided by 1/4 = 57.5

8 0

3 years ago