Answer:
r > -69
Step-by-step explanation:
13 - r < 82
subtract 13 from both sides
13 - r - 13 < 82 - 13
- r < 69
to flip the inequality sign, multiply both side by -1 to make r positive:
- r (-1) < 69 (-1)
r > -69
Answer:
X= 25/6
Step-by-step explanation:
Please mark brainliest
Answer:
In general, we determine the domain of each function by looking for those values of the independent variable (usually x) which we are allowed to use. (Usually we have to avoid 0 on the bottom of a fraction, or negative values under the square root sign).
The range of a function is the spread of possible y-values (minimum y-value to maximum y-value)
Substitute different x-values into the expression for y to see what is happening. (Ask yourself: Is y always positive? Always negative? Or maybe not equal to certain values?)
Make sure you look for minimum and maximum values of y.
Draw a sketch! In math, it's very true that a picture is worth a thousand words.
Step-by-step explanation: hope this helps <3
Answer:
3y-4x=9
Step-by-step explanation:
using y-y1/ x- x1=m
y-1/x--3=4/3
y-1/x+3= 4/3
3(y+1)=4(x+3)
3y+3= 4x+12
3y-4x=12-3
3y-4x=9
