What do you need help with in 1A
y = 3x - 3 is the equation of the linear function passing through (2, 3) and (5, 12)
<em><u>Solution:</u></em>
Given that we have to find the equation of linear function passing through (2, 3) and (5, 12)
The formula y = mx + b is said to be a linear function
Where "m" is the slope of line and "b" is the y - intercept
Let us first find the slope of line


Substituting values we get,

Thus slope of line is m = 3
To find the y - intercept, substitute m = 3 and (x, y) = (2, 3) in y = mx + b
3 = 3(2) + b
3 = 6 + b
b = 3 - 6
b = -3
Thus the required equation of linear function is:
Substitute m = 3 and b = -3 in formula
y = mx + b
y = 3x - 3
Thus the equation of linear function is found
Well, first, you need to add up the amount of ten fridges and ten pianos. than you see if its heavier or lighter... > or <....... do you remember how to graph?
$ 10.50 divide by 5 b
<span>to find 25% of her hourly wage last year </span>
<span>Then multiply by 4 to find 100% of her hourly wage last year. </span>
<span>ex: $ 10.50 divide by 5 </span>
<span>= $ 2.10 </span>
<span>Then multiply by 4 </span>
<span>$ 2.10 x 4 = $ 8.40</span>