Answer:
1. 
2. 
3a. 
3b. 3
3c. 
4. 
Step-by-step explanation:
1.
Rises 6 inches for every horizontal change of 16 inches
Slope = rise/run
Slope = 6/16
Slope = 3/8
2.
Rises 3 feet for every horizontal change of 12 feet
Slope = rise/run
Slope = 3/12
Slope = 1/4
3a.
3b.
3c.
4.
Umm kid u forgot to put in like -, +, or x, or at least /
but here are the answers, if its addition the answer is 1/4, if its subtraction answer is -19/4 but if u simplify it to mixed fraction answer would be -4 3/4, if its multiplication answer would be -45/8 but simplify that and it would be -5 5/8, if its division answer would be -9/10 hope this helps
Correct! lines that have undefined slopes are always parallel to the y-axis as the change in x is 0. A gradient is calculated by the change in y divided by the change in x and anything divided by 0 is referred to as undefined.
(calculation for a gradient)
Hope that helps sorry if its a bit confusing :)
Five less than twice what negative number squared is 157 <- put into an expression
-5 + 2(-x^2) = 157
Now simplify:
-5 + -2x^2 = 157
-2x^2 = 162
-2x^2 - 162 = 0
2x^2 + 162 = 0
x^2 + 81 = 0
