Which equation represents an exponential function that passes through the point (2, 80)?
2 answers:
The equation is y=mx+c where m is the gradient and c is the y-intercept
Answer:
Step-by-step explanation:
Given that the exponential function passes through the point (2,80)
Since only one point is given there may be more than one exponential function satisfying this.
One of them we select here is with base 4 and coefficient 5.
i.e.

We can check whether (2,80) lies on it.
Substitute x=2 and y =80
Left side =80
Right side =
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Answer:

Step-by-step explanation:
= Area of 1st rectangle = 
= Area of 2nd rectangle = 


The number of pounds required for the counter top is


The required expression is
.
√45 = √9√5 = 3√5
√20 = √4√5 = 2√5
3√5+2√5-√5=4√5
answer = 4√5
:)
To make the equation easier so that you don't have to use fractions.
Y intercept = when x = 0
Plug in x = 0
0 + 3y = 6
3y = 6, y = 2
Solution: a, (0,2)
Answer:
y = 3x + 8
Step-by-step explanation:
y = mx + b
m is the slope
b is the y intercept