Step-by-step explanation:
-10x+-4x-15/10+-14x-5
-14x-15/5-14x
+14x. +14x.
-15 does not equal 5 no solution
Answer:
Step-by-step explanation:
To find the x-intercept, substitute 0 for y and solve for x:
Divide both sides by 2:
Add 7 to both sides to isolate x:
The x-intercept for 
is 7 at point 
.
Remove parentheses:
Subtract 2 from both sides:
The x-intercept for 
is -2 at point 
.
Finito.
Answer:
1) C
Step-by-step explanation:
B-BRACKETS
I-INDICES
D-DIVISION
M-MULTIPLICATION
A-ADDITTION
y = abx
Point (1, 4): 4 = ab
Point (3, 16): 16 = ab^3
From 4=ab we have a = 4/b
Substitute into 2nd equation
16 = (4/b)b^3
16 = 4b^2
4 = b^2
2 = b
a = 4/b = 4/2 = 2
An exponential function that fits is: y = 2(2^x)
check: x=1; y = 2(21) = 4 ... point (1, 4)
x=3: y = 2(23) = 2(8) = 16 ... point (3, 16)
