Slope-intercept form:
y = mx + b
"m" is the slope, "b" is the y-intercept (the y value when x = 0)
Since you know m = 2, you can plug it into the equation
y = mx + b
y = 2x + b
To find "b", plug in the point (2,4) into the equation
y = 2x + b
4 = 2(2) + b
4 = 4 + b Subtract 4 on both sides
0 = b
y = 2x + 0
y = 2x
I'm guessing you have to simplify this?
You distribute 4 to whatever is in the parenthesis.
So
4•y=4y
4•6=24
And of course there's the 5y that stays the same.
You get 4y+24+5y
Which simplifies to 9y+24 because you can group the 4y and 5y together.
In the end, you get 9y+24.
Answer:the 24 for 1.19 is the better deal
Step-by-step explanation:
1. 1.19 ÷24 =4.95
2.2.89÷36=8.5
3. It cost less for 1 can than the 8.5 dollar can.
Answer:the number is 8
Step-by-step explanation:
Step 1
Let x be the number 13 was subtracted from so that the difference becomes x-13
i. dividing the resulting difference by 5, then (x-13)/5
ii. Multiplying the quotient by 7 makes the expression become (x-13)/5 x 7
with the product coming to -7 we have our final equation as
(x-13)/5 x 7 = -7
Step 2 -----solving the equation
(x-13)/5 x 7 = -7
Ist divide both sides by 7,
(x-13)/5 =-1
cross multiplying gives
x-13=-5
x= -5+ 13
x=8
the number is 8
