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3 years ago

Help me with this I can’t figure it out

Mathematics

2 answers:

Stella [2.4K]3 years ago

3 0

Answer:

y = 4x+6

The input is 11 when the output is 50

Step-by-step explanation:

We need to find the slope of this function using 2 points

(3,18) and (0,6) are two points

m = (y2-y1)/(x2-x1) is the formula for slope

=(6-18)/(0-3)

-12/-3

The slope is 4

We know the y intercept. It is the value when x =0. The y intercept is 6

We can use the slope intercept form of the equation

y = mx+b, where m is the slope and b is the y intercept.

y = 4x+6

We want to know the input when the output is 50 (or y=50)

50 = 4x+6

Subtract 6 from each side

50-6 = 4x+6-6

44 = 4x

Divide by 4

44/4 = 4x/4

11=x

The input is 11

Tom [10]3 years ago

3 0

Answer:

y = 4x + 6

Step-by-step explanation:

Equation

y= mx + b

Givens

See table

Solution

Start with x = 0. It is always a good place to start.
x = 0
y = 6
y = mx + b
6 = m*(0) + b
6 = b
So far what you have is y= mx + 6
Choose any point to find m
I'll use (3,18)
y = mx + 6
18 = 3*m+ 6 Subtract 6 from both sides
18 - 6 = 3m + 6 -6 combine
12 = 3m Divide by 3
12/3 = 3m/3 Divide
4 = m

y = 4m + 6 Answer

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