It's a linear function. We need only two points to sketch the graph.
f(x) = -5x + 4 → y = -5x + 4
for x = 0 → y = -5(0) + 4 = 0 + 4 = 4 → (0, 4)
for x = 1 → y= -5(1) + 4 = -5 + 4 = -1 → (1, -1)
The domain and the range is the set of all real numbers.
Answer:

Step-by-step explanation:
Given

See attachment
Required
Length ML
First, calculate x using the following equivalent ratios

Express as fraction

Cross Multiply

Substitute values:

Expand


Collect like terms


Using a calculator:
and 
Given that:

Substitute values for x


ML cannot be negative; So:

Answer:
7/8
Step-by-step explanation:
The greatest common factor in each is two so you divide both the numerator and the denominator by two to simplify the fraction
You multiply 5 times 10, which gives you 50. This is the length of one side. Since it's a square, all sides are the same length.
Answer: 50cm x 50cm