Answer:
y=12x+22 is linear but not proportional
Step-by-step explanation:
This is a linear equation because it has an x and y within the expression without exponents or other complex operators. We can rearrange and simplify the equation into slope-intercept form.
This linear equation follows the form y=mx+b where m is the slope and b is the y-intercept. For this function, m=12 and b=22. This is not a proportional relationship because the function's y-intercept is something other than 0.
Slope intercept form
y = mx + b
change it to standard form
ax +by = c
y = -1.7x + 8.5
1.7x + y = 8.5
multiply 10 on both side
17x + 10y = 85
hope this help
Im going to assume you know the formula.
sooo.
x= -11 +- √ (11)² -4 (1) (-15)
---------------------------------
2(1)
= -11 +- √121- (-60)
-------------------------
2
= -11 +- √181
-----------------
2
= -11 +- 13.45
-----------------
2
Either: Or:
X = -11 - 13.45
x = -11 + 13.45 ---------------
2
----- ----------
2
x = 1.23 x= -12.23
1198.08
1248 / .04 = 49.92
1248 - 49.92 = 1198.08