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68
<u />x<u>90
</u> 6,120
Hope this helps :D
Answer:
I don't know if I'm understanding your question correctly. But I'll try...
In this problem you need to remember PEMDAS!
Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction.
18 + 4(28) -First you would multiply 4 by 28 since the 28 is in parentheses.
18 + 112 -Now you would add to find your answer
= 130
I hope this helps!
-Mikayla
If x=4 , then . . .
... 7x = 28
... 7x+4 = 28+4 = 32
... absolute value of 32 is 32.
... -(absolute value of 32) = -32
Hello,
The rate of change is the slope (rise/run, y/x). To find that, we use the equation (y2-y1) over (x2-x1). It means take the second "y" and subtract it from the first "y" and the same to "x". If I plug in the numbers, it would be (3-6) over (5-4), and after you subtract, the answer simplifies to: -3/ 1 which is -3. Yay! We got the slope (rate of change) done.
Now let's find the y-intercept by using the formula of point-slope form,
y-y1= m (slope) (x-x1). This is saying you "y" is subtracted from the first
"y" of the points which equals the slope (m) times the quantity of "x" subtracted by the first "x" of the points.
Let's plug the numbers in: y-6 = -3 (x-4). Let's distribute -3 to the parenthesis, and after that it should simplify to: y-6 = -3x + 12. To get "y" by itself, add 6 to both sides: y = -3x +18. We have finally found the slope-intercept equation for those two points (4,6) and (5,3). To then find the y-intercept in this equation, it would be the 18, because -3 is the slope, so that makes 18 the y-intercept.
In conclusion, the rate of change is -3 and the y-intercept is 18.
I hope this helps!
May
